Chrysler New Yorker 1994, Vision 1994, LH New Yorker 1994,LHS 1994,Concorde 1994,Intrepid 1994,Vision 1994 User Manual

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LUBRICATION AND MAINTENANCE 0 - 1
LUBRICATION AND MAINTENANCE
CONTENTS
page page
CHASSIS AND BODY .................... 15
DRIVETRAIN ........................... 13
ENGINE ................................ 7
GENERAL INFORMATION
PARTS AND LUBRICANT RECOMMENDATIONS
When service is required, Chrysler Corporation rec­ommends that only Mopart brand parts, lubricants and chemicals be used. Mopar provides the best engi­neered products for servicing Chrysler Corporation vehicles.
SEVERE SERVICE
If a vehicle is operated under any of the following conditions, it is considered severe service.
Extremely dusty areas.
50% or more of vehicle operation in 32°C (90°F) or
higher temperatures.
Prolonged idling (such as, vehicle operation in stop and go traffic).
Frequent short running periods. Not allowing en­gine to warm to operating temperatures.
Police or taxi usage.
FUEL USAGE
All Chrysler Corporation engines require the use of unleaded fuel to reduce exhaust emissions. See En­gine section of this group and Group 14, Fuel for fuel recommendations.
GENERAL INFORMATION .................. 1
JUMP STARTING, HOISTING AND TOWING ... 5
MAINTENANCE SCHEDULES ............... 2
API QUALITY CLASSIFICATION.
SG service engine oil is a high quality crankcase lubricant designed for use in all naturally aspirated engines.
SG/CD service engine oil is a high performance crankcase lubricant designed for use in all gasoline or diesel engines.
GEAR LUBRICANTS
SAE ratings also apply to multiple grade gear lubri­cants. In addition, API classification defines the lubri­cants usage.
LUBRICANTS AND GREASES
Lubricating grease is rated for quality and usage by the NLGI. All approved products have the NLGI sym­bol on the label.
At the bottom NLGI symbol is the usage and qual­ity identification letters. Wheel bearing lubricant is identified by the letter ‘‘G’’. Chassis lubricant is iden­tified by the letter ‘‘L’’. The letter following the usage letter indicates the quality of the lubricant. The fol­lowing symbols indicate the highest quality.
NLGI SYMBOL
CLASSIFICATION OF LUBRICANTS
Only lubricants that are endorsed by the following organization should be used to service a Chrysler Corporation vehicle.
Society of Automotive Engineers (SAE)
American Petroleum Institute (API)
National Lubricating Grease Institute (NLGI)
ENGINE OIL
SAE GRADE RATING INDICATES ENGINE OIL VISCOSITY
SAE 30 = single grade engine oil.
SAE 5W-30 = multiple grade engine oil.
PARTS REQUIRING NO LUBRICATION
Many components on a Chrysler Corporation ve­hicle require no periodic maintenance. Some compo­nents are sealed and permanently lubricated. Rubber bushings can deteriorate or limit damping ability if lubricated. The following list of components require no lubrication:
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0 - 2 LUBRICATION AND MAINTENANCE
Air Pump
Generator Bushings
Drive Belts
Drive Belt Idler/Tensioner Pulley
Wheel Bearings
Rubber Bushings
Starter Bearings/Bushings
Suspension Strut Bearings
Throttle Control Cable
Throttle Linkage
Water Pump Bearings
MAINTENANCE SCHEDULES
INTRODUCTION
Chrysler Corporation has compiled recommended lubrication and maintenance schedules and proce­dures to help reduce premature wear or failure over a broad range of operating conditions. When selecting the proper maintenance schedule, the climate and operating conditions must be considered. A vehicle subjected to severe usage requires service more fre­quently than a vehicle used for general transporta­tion.
GENERAL SERVICE MAINTENANCE
AT EACH STOP FOR GASOLINE CHECK
Engine oil level and add as required.
Windshield washer solvent and add if required.
FLUID CAPACITIES
Fuel Tank..............................................68 L (18 gal.)
Engine Oil
3.3L ...........................................................4.7L (5 qts.)
3.5L ........................................................5.2L (5.5 qts.)
Cooling System
3.3L ................................................10.74L (10.17 qts.)
3.5L.................................................12.46L (11.80 qts.)
Includes heater and coolant pressure bottle
Transmission.......................................9.4L (9.9 qts.)
Differential..............................................0.95L (1 qt)
15,000 MILES (24 000 KM) OR AT 12 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
Replace engine oil filter.
Adjust the belt tension of non-automatic tensioning
drive belts.
Rotate tires.
Check exhaust system.
22,500 MILES (36 000 KM) OR AT 18 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
If it has been 12 months since your last oil filter
change, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
ONCE A MONTH
Check tire pressure and look for unusual wear or damage.
Inspect battery and clean and tighten terminals as required.
Check fluid levels of coolant pressure bottle, brake master cylinder, power steering and transmission. Add fluid as needed.
Check all lights and all other electrical items for correct operation.
7,500 MILES (12 000 KM) OR AT 6 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
If it has been 12 months since your last oil filter
change, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
30,000 MILES (48 000 KM) OR AT 24 MONTHS
Replace air cleaner filter.
Replace spark plugs.
Check engine coolant level, hoses and clamps.
Change engine oil.
Replace engine oil filter.
Replace the PCV filter (if equipped).
Adjust the belt tension of non-automatic tensioning
drive belts.
Rotate tires.
Check exhaust system.
37,500 MILES (60 000 KM) OR AT 30 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
If it has been 12 months since your last oil filter
change, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
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LUBRICATION AND MAINTENANCE 0 - 3
45,000 MILES (72 500 KM) OR AT 36 MONTHS
Flush and replace engine coolant at 36 months, regardless of mileage.
Flush and replace engine coolant.
Check engine coolant hoses and clamps.
Change engine oil.
Replace engine oil filter.
Adjust the belt tension of non-automatic tensioning
drive belts.
Rotate tires.
Check exhaust system.
52,500 MILES (84 500 KM) OR AT 42 MONTHS
Flush and replace engine coolant if not done at 36 months.
Check engine coolant system hoses and clamps.
Change engine oil.
If it has been 12 months since your last oil filter
change, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
60,000 MILES (96 500 KM) OR AT 48 MONTHS
Replace air cleaner filter.
Replace ignition cables.
Replace spark plugs.
Check and replace the PCV valve if necessary (see
note 1 at the end of this chart).
Replace the PCV filter (if equipped).
Check engine coolant level, hoses and clamps.
Change engine oil.
Replace engine oil filter.
Replace non-automatic tensioning drive belts.
Check and replace as needed all automatic tension-
ing drive belts.
Rotate tires.
Check exhaust system.
67,500 MILES (108 500 KM) OR AT 54 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
If it has been 12 months since the oil filter was
changed, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
75,000 MILES (120 500 KM) OR AT 60 MONTHS
Flush and replace engine coolant if it has been 30,000 miles or 24 months since last change.
Check engine coolant hoses and clamps.
Change engine oil.
Replace engine oil filter.
Adjust the belt tension of non-automatic tensioning
drive belts.
Check and replace as needed all automatic tension­ing drive belts (see note 2 at the end of this chart).
Rotate tires.
Check exhaust system.
82,500 MILES (133 000 KM) OR AT 66 MONTHS
Flush and replace engine coolant if it has been 30,000 miles or 24 months since last change.
Check engine coolant system hoses and clamps.
Change engine oil.
If it has been 12 months since the engine oil filter
was changed, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
90,000 MILES (145 000 KM) OR AT 72 MONTHS
Replace air cleaner filter.
Replace spark plugs.
Check and replace the PCV valve if necessary (see
note 1 at the end of this chart).
Check engine coolant level, hoses and clamps.
Change engine oil.
Replace engine oil filter.
Adjust the belt tension of non-automatic tensioning
drive belts.
Check and replace as needed all automatic tension­ing drive belts (see note 2 at the end of this chart).
Rotate tires.
Check exhaust system.
97,500 MILES (157 000 KM) OR AT 78 MONTHS
Check engine coolant level, hoses and clamps.
Change engine oil.
If it has been more than 12 months since the
engine oil filter was changed, replace the filter at this mileage.
Rotate tires.
Check exhaust system.
NOTE 1
On a California vehicle, this maintenance is recom­mended by Chrysler to the owner but is not required to maintain the warranty on the timing belt or the PCV valve.
NOTE 2
This maintenance is not required if the belt was previously replaced.
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0 - 4 LUBRICATION AND MAINTENANCE
SEVERE SERVICE MAINTENANCE
Follow the Severe Service recommendations if you operate your vehicle under ANY of the fol­lowing conditions
Stop and go driving
Extensive idling
Driving in dusty conditions
Frequent short trips
Trailer towing
Operating at sustained high speeds during hot
weather above 90°F (32°C).
3,000 MILES(5 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
6,000 MILES (12 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
9,000 MILES (14 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
Inspect front and rear brake linings.
12,000 MILES (19 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
15,000 MILES (24 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
Change automatic transmission fluid and filter. Ad-
just bands (if equipped).
Replace air cleaner air filter.
18,000 MILES (29 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
Inspect front and rear brake linings.
21,000 MILES (34 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
24,000 MILES (38 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
27,000 MILES (43 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
Inspect front and rear brake linings.
30,000 MILES (48 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
Change automatic transmission fluid and filter. Ad-
just bands (if equipped).
Inspect the PCV valve and replace, if necessary.
33,000 MILES (53 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
36,000 MILES (58 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
Inspect front and rear brake linings.
39,000 MILES (62 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
42,000 MILES (67 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
45,000 MILES (72 000KM)
Change engine oil.
Inspect CV joints and front suspension ball joints.
Inspect front and rear brake linings.
Replace automatic transmission fluid and filter.
Adjust bands (if equipped).
Replace air cleaner air filter.
48,000 MILES (77 000KM)
Change engine oil.
Replace engine oil filter.
Inspect CV joints and front suspension ball joints.
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LUBRICATION AND MAINTENANCE 0 - 5
JUMP STARTING, HOISTING AND TOWING
JUMP STARTING PROCEDURE
WARNING: REVIEW ALL SAFETY PRECAUTIONS AND WARNINGS IN GROUP 8A, BATTERY/START­ING/CHARGING SYSTEMS DIAGNOSTICS.
DO NOT JUMP START A FROZEN BATTERY, PER­SONAL INJURY CAN RESULT.
DO NOT JUMP START WHEN BATTERY INDICA­TOR DOT IS YELLOW OR BRIGHT COLOR.
DO NOT ALLOW JUMPER CABLE CLAMPS TO TOUCH EACH OTHER WHEN CONNECTED TO A BOOSTER SOURCE.
DO NOT USE OPEN FLAME NEAR BATTERY.
REMOVE METALLIC JEWELRY WORN ON HANDS OR WRISTS TO AVOID INJURY BY ACCIDENTAL ARCHING OF BATTERY CURRENT.
WARNING: ING DEVICE, DO NOT ALLOW DISABLED VEHICLE’S BATTERY TO EXCEED 16 VOLTS. PERSONAL INJURY OR DAMAGE TO ELECTRICAL SYSTEM CAN RESULT.
CAUTION: When using another vehicle as a booster, do not allow vehicles to touch. Electrical systems can be damaged on either vehicle.
TO JUMP START A DISABLED VEHICLE:
(1) Raise hood on disabled vehicle and visually in­spect engine compartment for:
Battery cable clamp condition, clean if necessary.
Frozen battery.
Yellow or bright color test indicator, if equipped.
Low battery fluid level.
Generator drive belt condition and tension.
Fuel fumes or leakage, correct if necessary.
CAUTION: If the cause of starting problem on dis­abled vehicle is severe, damage to booster vehicle charging system can result.
(2) When using another vehicle as a booster source, turn off all accessories, place gear selector in park or neutral, set park brake or equivalent and operate engine at 1200 rpm.
(3) On disabled vehicle, place gear selector in park or neutral and set park brake or equivalent. Turn OFF all accessories (Keyless Entry system must be turned OFF manually).
(4) Connect jumper cables to booster battery. RED clamp to positive terminal (+). BLACK clamp to nega­tive terminal (-). DO NOT allow clamps at opposite end of cables to touch, electrical arc will result (Fig.
1). Review all warnings in this procedure.
(5) On disabled vehicle, connect RED jumper cable clamp to positive (+) terminal. Connect BLACK
WHEN USING A HIGH OUTPUT BOOST-
jumper cable clamp to engine ground as close to the ground cable attaching point as possible (Fig. 1).
Fig. 1 Jumper Cable Clamp Connections
CAUTION: Do not crank starter motor on disabled vehicle for more than 15 seconds, starter will over­heat and could fail.
(6) Allow battery in disabled vehicle to charge to at least 12.4 volts (75% charge) before attempting to start engine. If engine does not start within 15 sec­onds, stop cranking engine and allow starter to cool (15 min.), before cranking again.
DISCONNECT CABLE CLAMPS AS FOLLOWS:
Disconnect BLACK cable clamp from engine ground on disabled vehicle.
When using a Booster vehicle, disconnect BLACK cable clamp from battery negative terminal. Discon­nect RED cable clamp from battery positive terminal.
Disconnect RED cable clamp from battery positive terminal on disabled vehicle.
HOISTING RECOMMENDATIONS
Refer to Owner’s Manual provided with vehicle for proper emergency jacking procedures.
WARNING: THE HOISTING AND JACK LIFTING POINTS PROVIDED ARE FOR A COMPLETE VE­HICLE. WHEN THE ENGINE OR REAR SUSPENSION IS REMOVED FROM A VEHICLE, THE CENTER OF GRAVITY IS ALTERED MAKING SOME HOISTING CONDITIONS UNSTABLE. PROPERLY SUPPORT OR SECURE VEHICLE TO HOISTING DEVICE WHEN THESE CONDITIONS EXIST.
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0 - 6 LUBRICATION AND MAINTENANCE
CAUTION: Do not position hoisting device on sus­pension components, damage to vehicle can result.
TO HOIST OR JACK VEHICLE SEE FIG. 2
Fig. 2 Hoisting and Jacking Points
TOWING RECOMMENDATIONS
RECOMMENDED TOWING EQUIPMENT
To avoid damage to bumper fascia and air dams use of a wheel lift or flat bed towing device (Fig. 3) is recommended. When using a wheel lift towing device, be sure the rear end of disabled vehicle has at least 100 mm (4 in.) ground clearance. If minimum ground clearance cannot be reached, use a towing dolly. If a flat bed device is used, the approach angle should not exceed 15 degrees.
A towed vehicle should be raised until lifted wheels are a minimum 100 mm (4 in) from the ground. Be sure there is adequate ground clearance at the oppo­site end of the vehicle, especially when towing over rough terrain or steep rises in the road. If necessary, remove the wheels from the lifted end of the vehicle and lower the vehicle closer to the ground, to increase the ground clearance at the opposite end of the ve­hicle. Install lug nuts on wheel attaching studs to retain braking discs.
SAFETY PRECAUTIONS
The following safety precautions must be considered when preparing for and during a vehicle towing op­eration:
Do NOT tow vehicle with front wheels on the ground. The transaxle can be damaged.
Secure loose and protruding parts from a disabled vehicle.
Always use a safety chain system that is indepen­dent of the lifting and towing equipment.
Do not allow any of the towing equipment to con­tact the fuel tank of the vehicle being towed.
Do not go under the vehicle while it is lifted by the towing equipment.
Do not allow passengers to ride in a vehicle being towed.
Always observe all state and local laws pertaining to warning signals, night illumination, speed, etc.
Do not attempt a towing operation that could jeop­ardize the operator, bystanders or other motorists.
Do not exceed a towing speed of 48 km/h (30mph).
Avoid towing distances of more than 24 km (15
miles), whenever possible.
Never attach tow chains or a tow sling to the bumper, steering linkage, or constant velocity joints.
TIE DOWN LOCATIONS FOR FLAT BED TOWING
There are three reinforced elongated holes on each side of the vehicle designed to serve as hold down locations. These locations can safely hold the vehicle to the towing device using T or R-hooks.
Bottom of the front frame rail forward of the en­gine cradle.
Bottom of the forward torque box between the front frame rail and the rocker panel.
Bottom of the rearward torque box forward of the rear wheel.
Fig. 3 Recommended Towing Devices
GROUND CLEARANCE
CAUTION: If vehicle is towed with wheels removed, install lug nuts to retain brake drums or rotors.
FRONT TOWING PROCEDURES
CAUTION: Do Not tow vehicle from the front with sling type towing device. Damage to bumper fascia will result.
Always tow vehicle with front wheels off the ground as shown (Fig. 4).
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Use a flat bed towing device when wheel lift towing
device is not available.
REAR TOWING PROCEDURES
CAUTION: Do not tow vehicle with the rear end lifted.
If damage to the vehicle prevents front towing, use
a flat bed towing device.
CAUTION: Do not push the vehicle with another vehicle as damage to the bumper fascia and tran­saxle can result.
ENGINE
page page
LUBRICATION AND MAINTENANCE 0 - 7
Fig. 4 Towing
INDEX
Battery ................................ 12
Crankcase Ventilation System ................ 11
Drive Belts .............................. 12
Emission Control System ................... 12
Engine Air Cleaner ........................ 10
Engine Cooling System ..................... 9
Engine Oil ............................... 7
FREQUENCY OF ENGINE OIL AND FILTER CHANGES
ENGINE OIL
Road conditions as well as your kind of driving affect the interval at which your oil should be changed. Check the following to determine if any apply to you:
Frequent short trip driving less than 8 kilometers (5 miles)
Frequent driving in dusty conditions
Frequent trailer towing
Extensive idling (such as vehicle operation in stop
and go traffic)
More than 50% of your driving is at sustained high speeds during hot weather, above 32°C (90°F)
If any of these apply to you then change your engine oil every 4 800 kilometers (3,000 miles) or 3 months, whichever comes first.
If none of these apply to you then change your oil every 12 000 kilometers (7,500 miles) or 6 months, whichever comes first.
If none of these apply and the vehicle is in commer­cial type service such as, Police, Taxi or Limousine used for highway driving of 40 kilometers (25 miles) or more between stations, the engine oil should be changed every 8 000 kilometers (5,000 miles) or 6 months.
Engine Oil Filter ........................... 9
Frequency of Engine Oil and Filter Changes ...... 7
Fuel Filter .............................. 12
Fuel Recommendations ....................11
Ignition Cables ........................... 12
Rubber and Plastic Component Inspection ......13
Spark Plugs ............................. 12
FLEXIBLE FUEL VEHICLES
Flexible fuel is corrosive and contributes to engine oil contamination. When flexible fuel is being used, the engine oil should be changed every 8 000 kilome­ters (5,000 miles) or 6 months, whichever comes first.
OIL FILTER
The engine oil filter should be replaced with a new filter at every second oil change.
ENGINE OIL
WARNING: NEW OR USED ENGINE OIL CAN BE IRRITATING TO THE SKIN. AVOID PROLONGED OR REPEATED SKIN CONTACT WITH ENGINE OIL. CONTAMINANTS IN USED ENGINE OIL, CAUSED BY INTERNAL COMBUSTION, CAN BE HAZARDOUS TO YOUR HEALTH. THOROUGHLY WASH EXPOSED SKIN WITH SOAP AND WATER.
DO NOT WASH SKIN WITH GASOLINE, DIESEL FUEL, THINNER, OR SOLVENTS, HEALTH PROB­LEMS CAN RESULT.
DO NOT POLLUTE, DISPOSE OF USED ENGINE OIL PROPERLY. CONTACT YOUR DEALER OR GOV­ERNMENT AGENCY FOR LOCATION OF COLLEC­TION CENTER IN YOUR AREA.
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0 - 8 LUBRICATION AND MAINTENANCE
BREAK-IN PERIOD
CAUTION: Wide open throttle operation in low gears, before engine break-in period is complete, can damage engine.
On a Chrysler Corporation vehicle an extended break-in period is not required. Driving speeds of not over 80-90 km/h (50-55 mph) for the first 100 km (60 miles) is recommended. Hard acceleration and high engine rpm in lower gears should be avoided.
SELECTING ENGINE OIL
CAUTION: Do not use non-detergent or straight min­eral oil when adding or changing crankcase lubri­cant. Engine or Turbocharger failure can result.
The factory fill engine oil is a high quality, energy conserving, crankcase lubricant. The Recommended SAE Viscosity Grades chart defines the viscosity grades that must be used based on temperature in the region where vehicle is operated and optional equipment.
NON-FLEXIBLE FUEL VEHICLES
Chrysler Corporation recommends that Mopar mo­tor oil, or equivalent, be used when adding or chang­ing crankcase lubricant. The API symbol (Fig. 1) on the container indicates the viscosity grade, quality and fuel economy ratings of the lubricant it contains. Use ENERGY CONSERVING II motor oil with API SERVICE SG or SG/CD classification.
SAE 5W-30 engine oil is recommended for use in
3.3L engines in temperatures below 38°C (100°F) to reduce low temperature cranking effort. SAE 5W-30 is recommended for use in 3.5L engines in tempera­tures below 0°C (32°F). SAE 5W-30 engine oil is NOT recommended for use in 3.5L engines in temperatures above 0°C (32°F).
SAE 10W-30 engine oil is recommended for use in
3.5L engine in temperatures above -18°C (0°F).
RECOMMENDED VISCOSITY GRADES
Fig. 1 API Symbol
FLEXIBLE FUEL VEHICLES
CAUTION: If motor oils that DO NOT meet or exceed MS-9214 are used in engines operated on M85 fuel, premature engine failure can result.
Vehicles operated using Flexible Fuel (M85) require engine oil that meet or exceed Chrysler Standard MS-9214. Mopar Flexible Fuel engine oil or equiva­lent should be used when adding or changing crank­case lubricant. The API symbol (Fig. 1) on the con­tainer indicates the viscosity grade, quality and fuel economy ratings of the lubricant it contains. Equiva­lent commercial flexible-fuel motor oils may be la­beled as Multi-fuel, Variable-fuel or Flexible-fuel. Re­fer to Recommended Viscosity Grades chart to determine proper motor oil viscosity based on tem­perature.
ENGINE OIL ADDITIVES
Chrysler Corporation recommends that Mopar En­gine Oil Supplement or equivalent be used when fric­tion and corrosion reducing materials added to the crankcase lubricant is desired.
CRANKCASE OIL LEVEL INSPECTION
CAUTION: Do not overfill crankcase with engine oil, oil foaming and oil pressure loss can result.
Inspect engine oil level approximately every 800 kilometers (500 miles). Position vehicle on level sur­face. With engine OFF, allow enough time for oil to settle to bottom of crankcase, remove engine oil level indicator (dipstick) and wipe clean. Install dipstick and verify it is seated in the tube. Remove dipstick, with handle above tip, take oil level reading (Fig. 2). Add oil only if level is below MIN or ADD mark on dipstick.
ENGINE OIL CHANGE
Change engine oil at mileage and time intervals described in the Maintenance Schedules.
TO CHANGE ENGINE OIL:
(1) Position the vehicle on a level surface.
Page 10
Fig. 2 Oil Level Indicator Dipstick—Typical
(2) Hoist and support vehicle on safety stands. Re­fer to Hoisting and Jacking Recommendations in this group.
(3) Place a suitable 3.8 liter (4 qt.) drain pan under crankcase drain.
(4) Remove drain plug from crankcase and allow oil to drain into pan. Inspect drain plug threads for stretching or other damage. Replace drain plug and gasket if damaged.
(5) Install drain plug in crankcase.
(6) Lower vehicle and fill crankcase with specified type and amount of engine oil described in this sec­tion.
(7) Start engine and inspect for leaks.
(8) Stop engine and inspect oil level.
ENGINE OIL FILTER
SELECTING OIL FILTER
Chrysler Corporation recommends a Mopar or equivalent oil filter be used when replacement is re­quired. A replacement filter must be designed to with­stand 1756 kPa (256 psi) of internal pressure.
OIL FILTER REMOVAL
(1) Position a drain pan under the oil filter.
(2) Using a suitable oil filter wrench (Fig. 3) loosen filter.
(3) When filter separates from adapter nipple, tip gasket end upward to minimize oil spill. Remove filter from vehicle.
(4) With a wiping cloth, clean the gasket sealing surface (Fig. 4) of oil and grime. Wipe off oil residue from below oil filter adapter.
OIL FILTER INSTALLATION:
(1) Lightly lubricate oil filter gasket with engine oil or chassis grease.
(2) Thread filter onto adapter nipple. When gasket makes contact with sealing surface, tighten filter one full turn. If necessary use a filter wrench, do not over tighten.
(3) Add oil, verify crankcase oil level and start en­gine. Inspect for oil leaks.
LUBRICATION AND MAINTENANCE 0 - 9
Fig. 3 Remove Oil Filter
Fig. 4 Install Oil Filter
ENGINE COOLING SYSTEM
WARNINGS AND PRECAUTIONS
WARNING: ANTIFREEZE IS AN ETHYLENE GLYCOL BASE COOLANT AND IS HARMFUL IF SWALLOWED OR INHALED. IF SWALLOWED, DRINK TWO GLASSES OF WATER AND INDUCE VOMITING. IF INHALED, MOVE TO FRESH AIR AREA. SEEK MEDI­CAL ATTENTION IMMEDIATELY. DO NOT STORE IN OPEN OR UNMARKED CONTAINERS. WASH SKIN AND CLOTHING THOROUGHLY AFTER COMING IN CONTACT WITH ETHYLENE GLYCOL. KEEP OUT OF REACH OF CHILDREN.
DISPOSE OF GLYCOL BASE COOLANT PROP­ERLY, CONTACT YOUR DEALER OR GOVERNMENT AGENCY FOR LOCATION OF COLLECTION CENTER IN YOUR AREA.
DO NOT OPEN A COOLING SYSTEM WHEN THE ENGINE IS AT RUNNING TEMPERATURE, PER­SONAL INJURY CAN RESULT.
AVOID RADIATOR COOLING FAN WHEN ENGINE COMPARTMENT RELATED SERVICE IS PER­FORMED, PERSONAL INJURY CAN RESULT.
CAUTION: Do not use straight antifreeze as engine coolant, inadequate engine running temperatures can result.
Do not operate vehicle without proper concentra­tion of recommended ethylene glycol coolant, high running temperatures and cooling system corrosion can result.
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0 - 10 LUBRICATION AND MAINTENANCE
The engine cooling system will develop internal pressure of 97 to 123 kPa (14 to 18 psi) at normal operating temperature. Allow the vehicle approxi­mately one half hour to cool off before opening the cooling system. As an indicator of pressure, squeeze the upper radiator hose between index finger and thumb. If it collapses with little effort the system would have low internal pressure and should be safe to open to the first safety notch of the coolant pres­sure bottle cap. Refer to Group 7, Cooling System.
COOLING SYSTEM INSPECTION
Coolant level (Fig. 5) should be inspected when other engine compartment service is performed or when coolant leak is suspected. Coolant pressure bottle level should be inspected when the engine is cold. The COLD FILL LEVEL mark is located on the side of the coolant pressure bottle. Cooling system freeze protection should be tested at the onset of the winter season or every 12 months. Service is required if coolant is low, contaminated, rusty or freeze protec­tion is inadequate. To properly test cooling system, see Group 7, Cooling System.
adequate protection. A mix table on the coolant con­tainer indicates the amount of antifreeze required to winterize the cooling system based on the capacity, see Capacity Chart in General Information section of this group.
SELECTING ANTIFREEZE
Chrysler Corporation recommends Mopar Antifreeze/Summer Coolant, or equivalent be used to winterize and protect cooling system.
PRESSURE CAP
The pressure cap must be secure for the engine cooling system to perform properly. Inspect and test pressure cap when cooling system service is per­formed or when a problem is suspected.
COOLING SYSTEM SERVICE
The cooling system should be drained, flushed and filled with the proper coolant mixture at the intervals described in the Lubrication and Maintenance Sched­ules. Refer to General Information section of this group. For proper service instructions see Group 7, Cooling System.
Fig. 5 Coolant Pressure Bottle
The cooling system factory fill is a mixture of 50% Glycol base antifreeze with silicate inhibitor and 50% water. Using a suitable hydrometer, measure anti­freeze concentration in the coolant pressure bottle when the engine is cool. If the cooling system has recently been serviced, allow coolant to circulate for at least 20 minutes before taking hydrometer reading. Properly mixed coolant will protect the cooling system to -37°C (-35°F). If the freeze protection is above
-28°C (-20°F), drain enough coolant from the cooling system to allow room to add antifreeze to achieve
ENGINE AIR CLEANER
The engine air cleaner should be serviced at the intervals described in the Lubrication and Mainte­nance Schedules. Refer to General Information sec­tion of this group. Additional information can be found in Group 14, Fuel System and Group 25, Emis­sion System. Inspect all air cleaner hoses or tubes for damage or leaks when other engine compartment ser­vice is performed. Replace faulty components.
AIR CLEANER SERVICE
CAUTION: The air cleaner cover must be installed properly for the emissions system and engine con­troller to function correctly.
Do not immerse paper air filter element or tem­perature sensor in cleaning solvents, damage can result.
TO SERVICE AIR CLEANER
(1) Raise hood of vehicle and inspect all air cleaner components for damage or improper attachment.
(2) Remove air cleaner lid (Fig. 6).
(3) Remove paper air filter element from air cleaner body. Hold a shop light on throttle body side of element. Inspect air intake side of element. If light is visible through element, blow dust from element (Fig. 7) and reuse. If element is saturated with oil or light is not visible, replace filter. If element is satu­rated with oil, perform crankcase ventilation system tests. Refer to Group 25, Emission Control Systems for proper procedure.
Page 12
LUBRICATION AND MAINTENANCE 0 - 11
(4) Clean inside of air cleaner lid and body with
vacuum or compressed air. If oily, wash with solvent.
To Install, reverse the preceding operation.
circuit. PCV system should be inspected at every oil change. Service PCV system if engine oil is dis­charged into air cleaner.
PCV SYSTEM TEST
Refer to group 25, Emission Control System for proper procedures to test PCV system.
Fig. 8 PCV System—3.3L Engine
Fig. 6 Air Cleaner
Fig. 7 Cleaning Air Filter Element
CRANKCASE VENTILATION SYSTEM
Engine crankcase pressure and emissions are vented into combustion chambers through the posi­tive crankcase ventilation (PCV) system (Fig. 8 or 9). The PCV system should have enough volume to over­come crankcase pressure created by piston backwash. If a PCV system becomes plugged, the crankcase pressure will increase and force engine oil past the piston rings creating oil consumption. Blockage of PCV system can occur at the vacuum source coupling, PCV valve or a collapsed hose.
Chrysler Corporation recommends that a PCV valve not be cleaned. A new Mopar or equivalent PCV valve should be installed when servicing is required. Over a period of time, depending on the environment where vehicle is used, deposits build up in the PCV vacuum
Fig. 9 PCV System—3.5L Engine
FUEL RECOMMENDATIONS
Chrysler Corporation recommends that only fuel purchased from a reputable retailer be used. Use high quality, unleaded gasoline to provide satisfactory driveability and highest fuel economy. Gasoline con­taining detergent and corrosion control additives are desireable. If the engine develops spark knock (au­dible ping), poor performance, hard starting or stall­ing, purchase fuel from another source. Engine per­formance can vary when using different brands of gasoline with the same octane rating. Occasional light engine spark knock under heavy acceleration, at low speed or when vehicle is heavily loaded is not harm­ful. Extended periods of spark knock under moderate acceleration or at cruising speed can dam-
Page 13
0 - 12 LUBRICATION AND MAINTENANCE
age the engine. The cause of excessive spark knock condition must be diagnosed and corrected. For diag­nostic proedures refer to Group 14, Fuel System and Powertrain Diagnostic Procedures manual.
3.3 L ENGINES
Use only unleaded gasoline having a minimum oc-
tane rating of 87.
3.5 L ENGINES
Use of mid-grade unleaded fuel with minimum oc­tane rating of 89 is recommended. Regular unleaded gasoline having a minimum octane rating of 87 can be used. Regular fuel can reduce engine performance and fuel mileage. Premium unleaded gasoline having a minimum octane rating of 91 can be used if desired. Refer to Group, 14 for additional information.
FLEXIBLE FUEL ENGINES
CAUTION: Do not use 100% methanol, damage to fuel system can result.
Use unleaded regular gasoline having a minimum octane rating of 87 (R=M)/2 and M85 fuel that is 85% methanol and 15% unleaded gasoline, or a mixture of these two.
SELECTING GASOLINE
CAUTION: Do not use fuel containing METHANOL (methyl or wood alcohol) in non-flexible fuel en­gines, damage to fuel system will result.
Do not use leaded gasoline, damage to catalytic converter will result and vehicle will not conform to emission control standards.
ETHANOL, MTBE OR ETBE BLENDS
All Chrysler Corporation vehicles are designed to use unleaded gasoline ONLY. Gasohol blends, con­taining 10% Ethanol (ethyl or grain alcohol) 90% unleaded gasoline can be used provided it has ad­equate octane rating.
Fuel blends containing up to 15% MTBE (Methyl Tertiary Butyl Ether) and 85% unleaded gasoline can be used. Fuel blends containing up to 17% ETBE (Ethyl Tertiary Butyl Ether) and 83% unleaded gaso­line can also be used.
Fuel blended with ethanol, MTBE or ETBE are also referred to as reformulated or clean air gasoline. These fuels contribute less emissions to the atmo­sphere. Chrysler Corporation recommends that blended fuels be used when available.
nents will result. Methanol induced problems are not the responsibility of Chrysler Corporation and may not be covered by the vehicle warranty.
FUEL FILTER
The fuel filter requires service only when a fuel contamination problem is suspected. For proper diag­nostic and service procedures refer to Group 14, Fuel System.
IGNITION CABLES
Inspect and test ignition cables when the spark plugs are replaced. Oil and grime should be cleaned from the ignition cables and coil to avoid possible spark plug fouling. Mopar Foamy Engine Degreaser, or equivalent is recommended for cleaning the engine compartment. For proper service and diagnostic pro­cedures refer to Group 8D, Ignition Systems.
SPARK PLUGS
Ignition spark plugs should be replaced at the mile­age interval described in the Lubrication and Mainte­nance Schedules. Refer to the General Information section of this group. For proper service procedures refer to Group 8D, Ignition Systems.
DRIVE BELTS
Inspect and adjust drive belts at the interval de­scribed in the Lubrication and Maintenance Sched­ules. Refer to General Information section of this group. For proper inspection and adjustment proce­dures refer to Group 7, Cooling System.
EMISSION CONTROL SYSTEM
Inspect all emission control components and hoses when other under hood service is performed. Refer to emission system Vacuum Hose Label located on the inside of the hood in the engine compartment and Group 25, Emission Control Systems for proper ser­vice procedures.
BATTERY
Inspect battery tray, hold down and terminal con­nections when other under hood service is performed. For proper diagnostic procedures refer to Group 8A, Battery/Starting/Charging System Diagnostics. For service and cleaning procedures refer to Group 8B, Battery/Starter Service.
METHANOL BLENDS
Using gasoline blended with methanol in non­flexible fuel engines can result in starting and drive­ability problems. Deterioration of fuel system compo-
Page 14
LUBRICATION AND MAINTENANCE 0 - 13
RUBBER AND PLASTIC COMPONENT INSPECTION
CAUTION: Plastic hoses or wire harness covers will melt or deform when exposed to heat from exhaust system or engine manifolds.
Position plastic or rubber components away from moving parts in engine compartment or under ve­hicle, or damage will result.
Do not allow rubber engine mounts or other com­ponents to become oil contaminated, repair cause of oil contamination and clean area.
All rubber and plastic components should be in­spected when engine compartment or under vehicle service is performed. When evidence of deterioration exists, replacement is required. To reduce deteriora-
DRIVETRAIN
INDEX
page page
Automatic Transaxle ....................... 13
Differential .............................. 14
Drive Shaft Boots ......................... 14
tion of rubber components, Chrysler Corporation rec­ommends Mopar Foamy Engine Degreaser or equiva­lent be used to clean engine compartment of oil and road grime.
EXHAUST SYSTEM ISOLATOR AND HANGER
The exhaust system should be inspected when un­der vehicle service is performed. The exhaust system should not make contact with under body, brake cables, brake/fuel lines, fuel tank or suspension com­ponents. Slight cracking in rubber isolator or hanger is acceptable. Severely cracked or broken rubber com­ponents must be replaced. For proper service proce­dures see Group 11, Exhaust System and Intake Manifold.
Tires ..................................14
Wheel Bearings .......................... 14
AUTOMATIC TRANSAXLE
The automatic transaxle should be inspected for fluid leaks and proper fluid level when other under hood service is performed.
CAUTION: To minimize fluid contamination, verify that dipstick is seated in the fill tube after fluid level reading is taken.
TO INSPECT THE TRANSAXLE FLUID LEVEL:
(1) Position the vehicle on a level surface.
(2) Start engine and allow to idle in PARK for at least 60 seconds. The warmer the transaxle fluid, the more accurate the reading.
(3) While sitting in driver seat, apply brakes and place gear selector in each position. Return gear se­lector to park.
(4) Raise hood and remove transaxle fluid level indicator (dipstick) and wipe clean with a suitable cloth.
(5) Install dipstick and verify it is seated in fill tube (Fig. 1).
CAUTION: Do not overfill automatic transaxle, fluid leak or damage can result.
(6) Remove dipstick, with handle above tip, take fluid level reading (Fig. 2). If the vehicle has been driven for at least 15 minutes before inspecting fluid
level, transaxle can be considered hot and reading should be above the WARM mark. If vehicle has run for less than 15 minutes and more than 60 seconds transaxle can be considered warm and reading should be above ADD mark. Add fluid only if level is below ADD mark on dipstick when transaxle is warm.
The automatic transaxle does not require periodic maintenance when used for general transportation. If the vehicle is subjected to severe service conditions, the automatic transaxle will require fluid/filter change and band adjustments every 24 000 km (15,000 miles). For additional information, refer to Severe Service paragraph and Lubrication and Main­tenance Schedules in General Information section of this group. The fluid and filter should be changed when water contamination is suspected. If fluid has foamy or milky appearance, it is probably contami­nated. If the fluid appears brown or dark and a foul odor is apparent, the fluid is burned, transaxle re­quires maintenance or service. A circular magnet lo­cated in the transaxle pan, collects metallic particles circulating in the oil. For proper diagnostic and ser­vice procedures, refer to Group 21, Automatic Tran­saxle.
SELECTING AUTOMATIC TRANSAXLE FLUID
Chrysler Corporation recommends Mopar ATF Plus (automatic transmission fluid type 7176) be used to add to or replace automatic transaxle fluid. If ATF
Page 15
0 - 14 LUBRICATION AND MAINTENANCE
Plus is not available use Dexront II or Dexron IIe Automatic Transmission Fluid or equivalent.
Fig. 1 Transaxle Fill tube
Fig. 3 Differential Fill Plug
Fig. 2 Transaxle Dipstick—Typical
DIFFERENTIAL
The differential should be inspected for oil leaks and proper oil level when other under vehicle service is performed. To inspect the differential oil level, posi­tion the vehicle on a level surface and remove fill plug (Fig. 3). The oil level should be at the bottom edge of oil fill opening.
The differential does not require periodic mainte­nance when subjected to normal driving conditions. The oil should be changed when water contamination is suspected. If oil has foamy or milky appearance it probably is contaminated. For proper diagnostic and service procedures, refer to Group 21, Transaxle.
SELECTING LUBRICANT
Chrysler Corporation recommends Mopar Gear Lube, SAE 80W-90, or equivalent, be used to fill the differential.
DRIVE SHAFT BOOTS
The front drive shaft constant velocity and tripod joint boots (Fig. 4) should be inspected when other under vehicle service is performed. Inspect boots for cracking, tears, leaks or other defects. If service re­pair is required, refer to Group 2, Suspension.
Fig. 4 Drive Shaft Boots
WHEEL BEARINGS
The wheel bearings are permanently sealed, requir­ing no lubrication. For proper diagnostic and service procedures refer to Group 2, Suspension.
TIRES
The tires should be inspected at every engine oil change for proper inflation and condition. The tires should be rotated at the distance intervals described in the Lubrication and Maintenance Schedules of the General Information section in this group. For tire inflation specifications refer to the Owner’s Manual. A Tire Inflation sticker is located in the driver door opening. For proper diagnostic procedures, see Group 22, Wheels and Tires.
TIRE ROTATION
The Forward Cross rotation method is recommended for use on Chrysler Corporation vehicles (Fig. 5). Other rotation methods can be used, but may not have the benefits of the recommended method. Only the four tire
Page 16
rotation method can be used if the vehicle is equipped with a space saver spare tire.
LUBRICATION AND MAINTENANCE 0 - 15
Fig. 5 Tire Rotation
CHASSIS AND BODY
INDEX
page page
Body Lubrication ......................... 17
Brakes ................................. 16
Headlamps ............................. 16
Power Steering .......................... 15
STEERING LINKAGE
INSPECTION
The steering linkage and steering gear should be inspected for wear, leaks or damage when other under vehicle service is performed. The rack and pinion steering gear end boots should not have excess oil or grease residue on the outside surfaces or surrounding areas. If boot is leaking, it should be repaired. For proper service procedures refer to Group 19, Steering.
The tie rod end ball joints are permanently sealed, requiring no lubrication. For proper diagnostic and service procedures refer to Group 2, Suspension.
SUSPENSION BALL JOINTS
The ball joints are permanently sealed, requiring no lubrication. For proper diagnostic and service proce­dures refer to Group 2, Suspension.
Steering Linkage .........................15
Supplemental Airbag System ................ 17
Suspension Ball Joints ..................... 15
POWER STEERING
The power steering fluid level should be inspected when other under hood service is performed. If the fluid level is low and system is not leaking, use Mopar Power Steering Fluid or equivalent. The power steering system should be inspected for leaks when other under vehicle service is performed. For proper service procedures refer to Group 19, Steering.
The power steering pump drive belt should be in­spected at the time and distance interval described in the Lubrication and Maintenance Schedules. Refer to the General Information section of this group.
POWER STEERING FLUID INSPECTION
WARNING: ENGINE MUST NOT BE RUNNING WHEN INSPECTING POWER STEERING FLUID LEVEL, PERSONAL INJURY CAN RESULT.
Page 17
0 - 16 LUBRICATION AND MAINTENANCE
CAUTION: Do not over fill power steering reservoir when adding fluid, seal damage and leakage can result.
TO INSPECT FLUID LEVEL
(1) Position vehicle on a level surface with engine
at normal running temperature.
(2) Turn OFF engine and remove ignition key. (3) Using a wiping cloth, clean oil and dirt residue
from around power steering reservoir cap.
(4) Remove reservoir cap or dipstick and wipe off
fluid.
(5) Install cap or dipstick.
(6) Remove cap or dipstick. Holding handle or cap above tip of dipstick, read fluid level (Fig. 1). Add fluid if reading is below cold level mark on dipstick.
and Maintenance Schedules. Refer to General Infor­mation section of this group. A hose must be replaced if it has signs of cracking, chafing, fatigue or bulging. For proper service procedures, refer to Group 5, Brakes.
BRAKE LINE INSPECTION
The metal brake lines should be inspected when other under vehicle service is preformed. If a line is pinched, kinked, or corroded, it should be repaired. For proper service procedures, refer to Group 5, Brakes.
BRAKE RESERVOIR LEVEL INSPECTION
WARNING: DO NOT ALLOW PETROLEUM OR WA­TER BASE LIQUIDS TO CONTAMINATE BRAKE FLUID, SEAL DAMAGE AND BRAKE FAILURE CAN RESULT.
The brake reservoir level should be inspected when other under hood service is performed. It is normal for the reservoir level to drop as disc brake pads wear. When fluid must be added, use Mopar Brake Fluid or equivalent. Use only brake fluid conforming to DOT 3, Federal, Department of Transportation specifica­tion. To avoid brake fluid contamination, use fluid from a properly sealed container.
If fluid level should become low after several thou­sand kilometers (miles), fill the reservoir to level marks on the side of the reservoir (Fig. 2).
Fig. 1 Power Steering Reservoir Dipstick
BRAKES
BRAKE PAD AND LINING INSPECTION
The brake pads and linings should be inspected at distance intervals described in the Lubrication and Maintenance Schedules. Refer to the General Infor­mation section of this group. If brake pads or linings appear excessively worn, the brakes would require service. For proper service procedures, refer to Group 5, Brakes.
BRAKE HOSE INSPECTION
WARNING: IF FRONT WHEEL, REAR AXLE, OR ANTI-LOCK UNIT BRAKE HOSE OUTER COVER IS CRACKED, CHAFED, OR BULGED, REPLACE HOSE IMMEDIATELY. BRAKE FAILURE CAN RESULT.
The front wheel, rear axle and anti-lock unit (if equipped) brake hoses should be inspected at time and distance intervals described in the Lubrication
Fig. 2 Brake Reservoir—Typical
HEADLAMPS
The headlamps should be inspected for intensity and aim whenever a problem is suspected. When luggage compartment is heavily loaded, the headlamp aim should be adjusted to compensate for vehicle height change. For proper service procedures, refer to Group 8L, Lamps.
Page 18
LUBRICATION AND MAINTENANCE 0 - 17
SUPPLEMENTAL AIRBAG SYSTEM
WARNING: FAILURE TO HAVE THE AIRBAG SYS­TEM PROMPTLY SERVICED BY AN AUTHORIZED DEALER SHOULD ONE OF THE FOLLOWING CON­DITIONS EXIST CAN LEAD TO POSSIBLE INJURY IN THE EVENT OF AN ACCIDENT.
If the AIRBAG indicator lamp does not light at all, stays lit or lights momentarily or continuously while driving, a malfunction may have occurred. Prompt service is required. Refer to Group 8M, Restraint Systems for proper diagnostic procedures.
BODY LUBRICATION
Body mechanisms and linkages should be inspected, cleaned and lubricated as required to maintain ease of operation and to prevent corrosion and wear.
Before a component is lubricated, oil, grease and dirt should be wiped off. If necessary, use solvent to clean component to be lubricated. After lubrication is complete, wipe off excess grease or oil.
During winter season, external lock cylinders should be lubricated with Mopar Lock Lubricant or equivalent to assure proper operation when exposed to water and ice.
To assure proper hood latching component opera­tion, use engine oil to lubricate the latch, safety catch and hood hinges when other under hood service is performed. Mopar Multi-purpose Grease or equivalent should be applied sparingly to all pivot and slide contact areas.
USE ENGINE OIL ON
Door hinges—Pivot points.
Hood hinges—Pivot points.
Trunk lid hinges—Pivot points.
USE MOPAR LUBRIPLATE OR EQUIVALENT ON
Ash receiver slides.
Door check straps.
Park brake mechanism.
Front seat tracks.
Trunk latch.
Page 19
Page 20
SUSPENSION AND DRIVESHAFTS 2 - 1
SUSPENSION AND DRIVESHAFTS
CONTENTS
page page
DRIVESHAFTS ......................... 40
FRONT SUSPENSION ..................... 4
FRONT SUSPENSION SERVICE PROCEDURES . 6
GENERAL INFORMATION
Throughout this group, references may be made to a particular L.H. platform vehicle by letter or number designation. A chart showing the breakdown of these designations is included in the Introduction section at the front of this Service Manual.
The L.H. platform vehicles have a MacPherson gas pressurized strut front suspension design (Fig. 1). The MacPherson strut shock absorber assembly in­cludes the following components. A rubber isolated top mount, seat and bearing assembly and a coil spring insulator. The MacPherson strut assembly is attached to the vehicle at the shock tower using 3 studs which are part of the isolated top mount. The lower end of the MacPherson strut assembly is at­tached to the upper leg of the steering knuckle. At­tachment of the MacPherson strut assembly to the steering knuckle is by 2 serrated bolts. A forged lower
GENERAL INFORMATION .................. 1
REAR SUSPENSION ..................... 53
SPECIFICATIONS ....................... 72
control arm assembly (Fig. 1) is attached to the front cradle and steering knuckle. A tension strut (Fig. 1) connects the lower control arm assembly to the front cradle.
A sealed for life front hub and bearing assembly is attached to the front steering knuckle. The outer C/V joint assembly is splined to the front hub and bearing assembly and is retained by a prevailing torque nut.
CAUTION: ONLY FRAME CONTACT HOISTING EQUIPMENT CAN BE USED ON L.H. PLATFORM VE­HICLES. The L.H. platform vehicles have a fully in­dependent rear suspension. The L.H. platform ve­hicles can not be hoisted using equipment designed to lift a vehicle by the rear axle. If this type of hoisting equipment is used damage to rear suspen­sion components will occur.
Page 21
2 - 2 SUSPENSION AND DRIVESHAFTS
Fig. 1 L.H. Platform Front Suspension
Page 22
SUSPENSION AND DRIVESHAFTS 2 - 3
SUSPENSION/STEERING/DIAGNOSIS FRONT WHEEL DRIVE
Page 23
2 - 4 SUSPENSION AND DRIVESHAFTS
FRONT SUSPENSION
FRONT SUSPENSION MAJOR COMPONENTS (FIG. 2)
STRUT ASSEMBLY
The front strut and suspension of the vehicle is supported by coil springs positioned around the struts. The springs are contained between an upper seat, located just below the top strut mount assembly (Fig. 2) and a lower spring seat on the strut lower housing.
The top of each strut assembly is bolted to the upper fender reinforcement (shock tower) through a rubber isolated mount.
The bottom of the strut assembly attaches to the top of the steering knuckle with two serrated through bolts and prevailing torque nuts. Caster is a fixed setting (net build) on all vehicles and is not adjustable.
STEERING KNUCKLE
The steering knuckle (Fig. 2) is a single casting with legs machined for attachment to the front strut assembly and lower control arm ball joint. The steer­ing knuckle also has machined abutments on the casting to support and align the front brake caliper assembly. The knuckle also holds the front drive shaft outer C/V joint hub and bearing assembly. The hub is positioned through the bearing and knuckle, with the constant velocity stub shaft splined through the hub. The outer C/V joint is retained to the hub and bearing assembly using a prevailing torque nut.
LOWER CONTROL ARM
The lower control arm (Fig. 2) is a steel forging with 2 rubber bushings isolating the lower control arm from the front cradle assembly. The isolator bushings consist of a metal encased pivot bushing and a solid rubber tension strut bushing. The lower control arm is bolted to the cradle assembly using a pivot bolt through the center of the rubber pivot bushing and at the tension strut isolator bushing (Fig. 2).
The ball joint is an integral part of the control arm and has a non-tapered stud with a notch for clamp
bolt clearance. The stud is clamped and locked into the steering knuckle leg with a clamp bolt. The ball joint used on the L.H. Platform vehicle is non­serviceable and if defective must be serviced as part of the lower control arm.
DRIVESHAFTS
A left and right driveshaft is attached inboard to the transaxle differential output (or stub) shaft, and outboard to the driven wheel hub and bearing assem­bly.
To deliver driving force from the transaxle to the front wheels during turning maneuvers and suspen­sion movement. Both shafts are constructed with con­stant velocity universal joints at both ends.
Both shafts have a Tripod (sliding) joint at the transaxle end and C/V joints (with splined stub shafts) on the hub ends. Due to the transaxle loca­tion the connecting shafts between the C/V joints are of different length and construction. The left shaft is longer than the right. Both the left and right drive shafts are of the solid bar type. No tubular drive shafts are used on any available L.H. platform ve­hicle and powertrain combinations.
TENSION STRUTS
The L.H. platform vehicle uses a tension strut (Fig.
2) on each side of the vehicles front suspension. The tension strut controls longitudinal (for-and-aft) move­ment of the front wheels of the vehicles. Controlling the longitudinal movement of the wheels reduces harshness when wheels hit sudden irregularities in the road surface.
STABILIZER BAR (SWAY BAR)
The stabilizer bar (Fig. 2) interconnects the front strut assemblies of the vehicle. The purpose of a stabilizer bar is to control the body roll of the vehicle.
STABILIZER BAR LINK ASSEMBLY
The stabilizer bar link assembly (Fig. 2) is used to attach the stabilizer bar to the front strut assemblies. This reduces the fore-and-aft rate of the sway bar from the rest of the suspension.
Page 24
SUSPENSION AND DRIVESHAFTS 2 - 5
Fig. 2 L.H. Platform Front Suspension
Page 25
2 - 6 SUSPENSION AND DRIVESHAFTS
FRONT SUSPENSION SERVICE PROCEDURES
INDEX
page page
Ball Joints .............................. 20
Front Suspension Serviceable Components ...... 6
Front Wheel Alignment ...................... 6
Hub and Bearing Assembly ................. 34
Lower Control Arm Bushing Service ........... 18
Lower Control Arm Service .................. 12
Servicing Stabilizer Bar and Bushings .......... 21
FRONT SUSPENSION SERVICEABLE COMPONENTS
The following components may be replaced either
individually or as an assembly.
Gas pressurized front strut must be replaced as an assembly. The strut is not serviceable. It is not neces­sary to replace strut assemblies in pairs.
Strut assembly upper mounts are replaceable.
Bearing and seat assemblies may be replaced indi-
vidually.
Coil springs may be replaced individually from the strut assemblies.
Coil spring lower isolator may be replaced indi­vidually.
Front wheel hub and bearing assemblies are indi­vidually replaceable.
Front lower control arm assemblies are replace­able. The ball joint is integral to the control arm and will require replacement of the control arm if defec­tive. The ball joint seal is individually replaceable. Lower control arm bushings are serviced as indi­vidual components of lower control arm assembly, and do not require replacement of lower control arm if defective.
Tension struts are replaceable as are the tension strut to cradle assembly isolator bushings. Tension strut washers at the lower control arm and cradle are replaceable, with proper approved replacement parts
ONLY.
Front stabilizer bar is replaceable. Front stabilizer bar isolator bushings, clamps and stabilizer bar link assemblies are also replaceable.
Driveshaft seal and boot replacement, is the only service to be performed on the driveshaft assemblies. Any failure of an internal driveshaft component will require the replacement of the driveshaft assembly.
FRONT WHEEL ALIGNMENT
Front wheel alignment is the proper settings of all the interrelated suspension angles affecting the run­ning and steering of the front wheels of the vehicle.
On the L.H. platform vehicle the only adjust­able suspension setting is wheel TOE.
Servicing Wheel Studs ..................... 37
Steering Knuckle Service ................... 29
Strut Damper Assembly .....................7
Suspension Coil Springs ................... 12
Tension Strut Service ......................15
Wheel Alignment Service Procedure ............7
The method of checking front alignment will vary depending on the type of equipment being used. The instructions furnished by the manufacturer of the equipment should always be followed. With the excep­tion that the alignment specifications recommended by Chrysler Corporation be used.
There are six basic factors which are the foundation to front wheel alignment. These are vehicle height, caster, camber, toe-in, steering axis inclination and toe-out on turns. Of the six basic factors only TOE
IN is mechanically adjustable on the L.H. plat­form vehicle (Fig. 1).
CAUTION: Do not attempt to modify any suspension or steering components by heating or bending of the component.
Wheel alignment adjustments can only be made for the Toe In setting on the L.H. platform vehicles.
Toe is measured in degrees or inches and is the
distance the front edges of the tires are closer (or farther apart) than the rear edges. See Front Wheel Drive Specifications for Toe settings.
PRE-ALIGNMENT
Before any attempt is made to change or correct front wheel alignment. The following inspection and necessary corrections must be made on those parts which influence the steering of the vehicle.
(1) Check and inflate tires to recommended pres­sure. All tires should be the same size and in good condition and have approximately the same wear. Note type of tread wear which will aid in diagnosing, see Wheels and Tires, Group 22.
(2) Check front wheel and tire assembly for radial runout.
(3) Inspect lower ball joints and all steering linkage for looseness.
(4) Check for broken or front and rear springs.
Alignment must only be checked after the vehicle has had the following checked or adjusted. Tires set
Page 26
to recommended pressures, full tank of fuel, no pas­senger or luggage compartment load and is on a level floor or alignment rack.
Just prior to each alignment reading. The vehicle should be bounced (rear first, then front) by grasping bumper at center and jouncing each end an equal number of times. Always release bumpers at bottom of down cycle.
SUSPENSION AND DRIVESHAFTS 2 - 7
Fig. 2 Front Wheel Toe Adjustment Location
Fig. 1 L.H. Platform Toe Adjustment
WHEEL ALIGNMENT SERVICE PROCEDURE
FRONT WHEEL TOE ADJUSTMENT
(1) Prepare vehicle as described in the Pre­Alignment procedure.
(2) Center steering wheel and hold with steering wheel clamp.
(3) Loosen tie rod adjustment sleeve jamnuts. Ro­tate adjustment sleeve to align toe to specifications (Fig. 2).
CAUTION: When setting Toe on vehicle, the maxi­mum dimension of exposed threads allowed on in­ner and outer tie rod can not exceed the distance shown in (Fig. 3). If the maximum distance is ex­ceeded, inadequate retention of either inner or outer tie rod may result. Ensure that adjustment sleeve jam nuts are torqued to required specification when Toe setting procedure is completed.
Fig. 3 Tie Rod Adjustment Sleeve Thread
Engagement
(4) Tighten tie rod adjustment sleeve locknuts to 75
Nzm (55 ft. lbs.) torque.
(5) Remove steering wheel clamp.
STRUT DAMPER ASSEMBLY
REMOVAL
(1)
Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubri­cation and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove front wheel and tire assembly from the
vehicle.
(3) Remove the stabilizer bar attaching link at the
strut assembly (Fig. 1).
(4) Loosen but do not remove the outer tie rod end to strut assembly steering arm attaching nut (Fig. 2). Then remove outer tie rod end from steering arm using Puller, Special Tool MB-990635 or equivalent (Fig. 2).
(5) If vehicle is equipped with Anti-Lock brakes. Remove speed sensor cable routing bracket from front strut assembly (Fig. 3).
(6) Remove brake caliper assembly from steering knuckle and braking disc. Refer to the Brake Section
Page 27
2 - 8 SUSPENSION AND DRIVESHAFTS
Fig. 1 Stabilizer Bar Link Removed From Strut
some other method, do not let caliper assembly hang by brake hose (Fig. 4). Remove front braking disc from hub.
Fig. 2 Removing Outer Tie Rod From Steering Arm
Fig. 4 Removal And Storage Of Front Caliper
CAUTION: The strut assembly to steering knuckle bolts are serrated where they go through strut as­sembly and steering knuckle. When removing bolts, turn nuts off bolts DO NOT TURN BOLTS IN STEER­ING KNUCKLE. If bolts are turned damage to steer­ing knuckle will result.
(7) Remove the strut assembly to steering knuckle attaching bolts (Fig. 5).
Fig. 3 Speed Sensor Cable Routing Bracket
in this service manual for the required caliper re­moval and storage procedure. Support caliper assem­bly by hanging it from frame of vehicle with wire or
Fig. 5 Strut Assembly To Steering Knuckle
Attaching Bolts
Page 28
SUSPENSION AND DRIVESHAFTS 2 - 9
(8) Remove the 3 strut assembly upper mount to shock tower mounting nut and washer assemblies (Fig. 6).
Fig. 6 Strut Assembly Mounting To Shock Tower
(9) Remove the strut assembly from the vehicle for inspection and or disassembly.
INSPECTION
Inspect for evidence of fluid running from the upper end of the reservoir. (Actual leakage will be a stream of fluid running down the side and dripping off lower end of unit). A slight amount of seepage between the strut rod and strut shaft seal is not unusual and does not affect performance of the strut assembly.
bly to steering knuckle attaching bolts (Fig. 7). Torque the caliper assembly attaching bolts to 19 Nzm (192 in. lbs.).
Fig. 7 Front Disc Brake Caliper Mounting Bolts
(5) If the vehicle is equipped with Anti-Lock brakes. Install the front speed sensor cable routing bracket onto the front strut assembly (Fig. 3).
(6) Install outer tie rod on steering arm of strut assembly (Fig. 8). Install tie rod to steering arm attaching nut on tie rod. Torque the tie rod to steering arm attaching nut to 37 Nzm (27 ft. lbs.).
(7) Install stabilizer bar link assembly onto strut assembly (Fig. 8). Torque the stabilizer link assembly to strut assembly attaching nut to 95 Nzm (70 ft. lbs.).
INSTALLATION
(1) Install front strut assembly into shock tower. Install the 3 strut assembly upper mount to shock tower attaching nuts (Fig. 6). Torque the 3 strut mount to shock tower attaching nuts (Fig. 6) to 33 Nzm (25 ft. lbs.) torque.
(2) Position steering knuckle neck into strut assem­bly.
CAUTION: The strut assembly to steering knuckle bolts are serrated were they go through strut as­sembly and steering knuckle. When installing bolts, turn nuts onto bolts DO NOT TURN BOLTS IN STEERING KNUCKLE. If bolts are turned damage to steering knuckle will result.
(3) Install the strut assembly to steering knuckle attaching bolts (Fig. 5). Install nuts on attaching bolts (Fig. 5). Torque the strut assembly to steering knuckle attaching bolt nuts to 169 Nzm (125 ft. lbs.).
TURN NUTS ON BOLTS DO NOT TURN BOLTS.
Install braking disc back on front hub and
(4) bearing assembly. Install front brake caliper assem­bly on steering knuckle. Install the 2 caliper assem-
Fig. 8 Tie Rod And Stabilizer Bar Link Installation
(8) Install the wheel and tire assembly.
(9) Tighten the wheel mounting stud nuts in proper sequence (Fig. 9) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
(10) Lower vehicle.
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2 - 10 SUSPENSION AND DRIVESHAFTS
Fig. 9 Tightening Wheel Nuts
DISASSEMBLY (STRUT DAMPER)
The front strut is not serviced and must be replaced as an assembly if found to be defective. The strut is available with 2 calibrations, be sure strut is replaced with an assembly of the same calibration.
The components of the strut assembly listed below are replaceable if found to be defective.
Coil spring (Coil springs come in a standard and high rate be sure spring is replaced with a spring of the correct rate.)
Dust shield
Mount assembly
Seat And Bearing
Jounce Bumper
Lower Spring Isolator
Shaft Nut
(1) Remove strut assembly requiring service from the vehicle. Refer to Strut Assembly Removal in Ser­vicing Rear Struts, in this section of the service manual.
(2) Position strut assembly in a vise, by clamping strut assembly by the steering arm (Fig. 1). Using paint or equivalent, mark the strut unit, lower spring isolator, spring and upper strut mount for indexing of the parts at assembly.
(3) Position Spring Compressors, Special Tool C-4838 on the strut assembly spring (Fig. 1). Com­press coil spring until all load is removed from upper strut mount assembly.
(4) Install Strut Rod Socket, Special Tool, L-4558 or L-4558A on strut shaft nut (Fig. 2). Using a 10 mm socket on end of strut shaft to keep strut shaft from turning (Fig. 2), remove strut shaft nut.
(5) Remove upper strut mount assembly from strut shaft (Fig. 3).
Fig. 1 Compressing Strut Assembly Coil Spring
Fig. 2 Remove Strut Shaft Nut
Fig. 3 Upper Strut Mount Removal
Page 30
(6) Remove the jounce bumper and the seat/bearing and dust shield as an assembly, from the strut assem­bly (Fig. 4).
Fig. 4 Jounce Bumper and Seat/Bearing And Dust
Shield
(7) Remove the coil spring and the spring compres­sor as an assembly from the strut unit (Fig. 5).
SUSPENSION AND DRIVESHAFTS 2 - 11
Fig. 6 Lower Spring Isolator
(2) Install compressed coil spring onto strut assem­bly aligning paint mark on spring with paint mark on strut assembly (Fig. 7).
Fig. 5 Removing Coil Spring And Compressor From
Strut
(8) Remove lower spring isolator from strut assem-
bly lower spring seat (Fig. 6).
Inspect all disassembled components for signs of abnormal wear or failure replacing any components as required. Inspect strut unit for signs of abnormal oil leakage and for loss of gas charge. To check for loss of gas charge in strut unit. Push strut shaft into body of strut and release, strut shaft should return to its fully extended position. If strut shaft does not return to its fully extended position replace strut unit.
STRUT REASSEMBLY
(1) Install original or new, lower spring isolator on strut unit (Fig. 6).
Fig. 7 Spring Installation On Strut Assembly
(3) Install the strut bearing into the bearing seat (Fig. 8). Bearing must be installed into seat with notches on bearing facing down (Fig. 8).
Fig. 8 Bearing Installation Into Seat
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2 - 12 SUSPENSION AND DRIVESHAFTS
(4) Lower seat/bearing and dust shield onto strut assembly and spring. Align paint mark on seat/bearing and dust shield, with paint mark on the strut spring (Fig. 9).
(7) Install Strut Rod Socket, Special Tool, L-4558 or L-4558A on strut shaft nut (Fig. 2). Using a 10 mm socket on end of strut shaft to keep strut shaft from turning (Fig. 2), torque strut shaft nut to 94 Nzm (70 ft. lbs.).
(8) Equally loosen the Spring Compressors, Special Tool C-4838 until spring is seated on upper strut mount and all tension is relieved from the spring compressors.
(9) Install the strut assembly back into the vehicle. Refer to Strut Assembly Removal in Servicing Front Struts in this section of the service manual.
SUSPENSION COIL SPRINGS
Springs are rated separately for each side of vehicle depending on optional equipment and type of service. During service procedures where both springs are removed, mark springs (Chalk, Tape, etc.) (Fig. 11) to ensure installation in original position. If the coils springs require replacement. Be sure that the
springs needing replacement, are replaced with springs meeting the correct load and spring rate for the vehicle.
During service procedures requiring the re­moval or installation of a coil spring with Spring Compressor, Special Tool C-4838. It is required that five coils be captured within the jaws of the tool (Fig. 11).
Fig. 9 Seat/Bearing And Dust Shield Installation
(5) Install original or replacement jounce bumper
onto shaft of strut assembly (Fig. 10).
Fig. 10 Jounce Bumper Installation
(6) Install the upper strut mount assembly onto the strut shaft, aligning paint marks (Fig. 3). Install the upper strut mount to strut shaft retaining nut on strut shaft.
Fig. 11 Identifying Coil Springs
LOWER CONTROL ARM SERVICE
The lower control arm if damaged, is serviced only as a complete component. Do not attempt to repair or straighten a broken or bent lower control arm.
The only serviceable components of the lower con­trol arm are, the pivot bushing, ball joint seal and tension strut bushing. The service procedure to re­place these components is detailed in the specific component sections of this group.
Page 32
REMOVAL (ASSEMBLY)
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove the wheel and tire assembly from the vehicle.
(3) Remove the ball joint stud to steering knuckle clamp nut and bolt (Fig. 1).
SUSPENSION AND DRIVESHAFTS 2 - 13
Fig. 2 Separating Ball Joint From Steering Knuckle
Fig. 1 Control Arm To Steering Knuckle Attachment
CAUTION: When lower control arm is separated from steering knuckle, do not let ball joint seal hit up against steering knuckle. If ball joint seal hits steering knuckle, seal damage may occur. If ball joint seal becomes torn, replace seal before assem­bling lower control arm to knuckle.
(4) Carefully insert a pry bar between lower control arm and steering knuckle (Fig. 2). Push down on pry bar to separate ball joint stud from steering knuckle (Fig. 2). Note: Use caution when separating ball
joint stud from steering knuckle so ball joint seal does not get cut.
CAUTION: Pulling steering knuckle out from vehicle after releasing from ball joint can separate inner C/V joint. See Driveshafts.
(5) Remove tension strut to cradle attaching nut and washer from end of tension strut (Fig. 3). When removing tension strut nut, keep strut from turning by holding tension strut at flat using open end wrench (Fig. 3). Discard tension strut to cradle
retaining nut. A NEW tension strut to cradle nut must be used when installing tension strut.
(6) Loosen and remove lower control arm pivot bushing to cradle assembly pivot bolt (Fig. 4).
Fig. 3 Tension Strut To Cradle Mounting
Fig. 4 Lower Control Arm Pivot Bolt
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2 - 14 SUSPENSION AND DRIVESHAFTS
(7) Separate lower control arm and tension strut from the cradle as an assembly. Lower control arm is removed from cradle, by first removing pivot bushing from cradle and then sliding tension strut out of isolator bushing (Fig. 5).
Fig. 5 Lower Control Arm Removal From Cradle
Inspect lower control arm and tension strut (Fig. 6) for distortion. Check all bushings for signs of sever deterioration. Replace any bushings that show signs of sever deterioration.
CAUTION: Pulling steering knuckle out from vehicle after releasing from ball joint can separate inner C/V joint. See Driveshafts.
CAUTION: When ball joint stud is installed into steering knuckle, do not let ball joint seal hit up against steering knuckle. If ball joint seal hits steer­ing knuckle, seal damage may occur. If ball joint seal becomes torn, replace seal before assembling lower control arm to knuckle.
(4) Install lower ball joint stud into steering knuckle. Install steering knuckle to lower ball joint stud, clamp bolt and nut into steering knuckle (Fig.
7). Torque clamp bolt to 55 Nzm (40 ft. lbs.).
Fig. 6 Lower Control Arm And Tension Strut
INSTALLATION (ASSEMBLY)
(1) Install the lower control arm on the cradle us­ing the following sequence. Install tension strut and isolator bushing into cradle first, then install lower control arm pivot bushing into bracket on cradle (Fig.
5).
(2) Install the lower control arm to cradle bracket attaching bolt and nut (Fig. 4). Do not tighten the
lower control arm to cradle bracket attaching bolt at this time.
(3) Install washer on end of tension strut (Fig. 3). Install a NEW tension strut to cradle bracket nut, on tension strut (Fig.3). Torque tension strut to cradle bracket retaining nut to 150 Nzm (110 ft. lbs.). When torquing tension strut nut, keep tension strut from turning by holding tension strut at flat using an open end wrench (Fig. 3).
Fig. 7 Control Arm To Steering Knuckle Attachment
(5) Install the wheel and tire assembly.
(6) Tighten the wheel mounting stud nuts in proper sequence (Fig. 8) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 8 Tightening Wheel Nuts
Page 34
(7) Lower vehicle so the suspension is supporting vehicles weight (control arm at design height). Torque the lower control arm pivot bushing to cradle bracket attaching bolt (Fig. 9) to 123 Nzm (90 ft. lbs.).
Fig. 9 Lower Control Arm Pivot Bolt
TENSION STRUT SERVICE
To remove tension strut from vehicle for replace­ment, the tension strut and lower control arm first MUST be removed as an assembly from the vehicle.
SUSPENSION AND DRIVESHAFTS 2 - 15
Fig. 10 Tension Strut Installed In Lower Control
Arm.
When torquing tension strut nut, keep tension strut from turning by holding tension strut at flat using an open end wrench (Fig. 11).
TENSION STRUT
REMOVAL AND REPLACEMENT
(1) Remove lower control arm and tension strut as an assembly from the vehicle. See Lower Control Arm Removal in this section of the service manual for the required removal procedure.
(2) Separate the tension strut from the lower con­trol arm assembly.
(3) Inspect tension strut bushing in lower control arm for excessive wear or deterioration. If tension strut bushing is found to be defective replace lower control tension strut bushing at this time. Refer to Lower Control Arm Bushing Service in this section of the service for tension strut removal and installation procedure.
(4) Install replacement tension strut into tension strut bushing on lower control arm assembly. Position tension strut in lower control as shown in (Fig. 10), with word FRONT stamped in tension strut posi­tioned away from control arm (Fig. 10). With an open end wrench on flat of tension strut to keep tension strut from turning. Torque NEW tension strut to lower control retaining nut to 150 Nzm (110 ft. lbs.).
(5) Install lower control arm and tension strut as an assembly back on the vehicle. See Lower Control Arm Installation in this section of the service manual for the required installation procedure.
(6) Install washer on end of tension strut (Fig. 11). Install a NEW tension strut to cradle bracket nut, on tension strut (Fig. 11). Torque the tension strut to cradle bracket retaining nut to 150 Nzm (110 ft. lbs.).
Fig. 11 Tension Strut To Cradle Mounting
(7) Install the wheel and tire assembly.
(8) Tighten the wheel mounting stud nuts in proper sequence (Fig. 12) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
(9) Lower vehicle so the suspension is supporting ve­hicles weight (control arm at design height). Torque the lower control arm pivot bushing to cradle bracket attach­ing bolt (Fig. 13) to 123 Nzm (90 ft. lbs.).
TENSION STRUT TO CRADLE BUSHING
REMOVE
To remove tension strut to cradle bushings from vehicle for replacement, the tension strut and lower control arm first MUST be removed as an assembly from the vehicle.
(1) Remove lower control arm and tension strut as
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2 - 16 SUSPENSION AND DRIVESHAFTS
Fig. 12 Tightening Wheel Nuts
Fig. 13 Lower Control Arm Pivot Bolt
an assembly from the vehicle. See Lower Control Arm Removal in this section of the service manual for the required removal procedure.
(2) Remove failed tension strut to cradle, isolator bushing from tension strut. Install replacement isola­tor bushing on tension strut until it is seated against retaining washer (Fig. 14).
(3) Remove the failed tension strut to cradle isola­tor bushing from the cradle assembly. Install replace­ment tension strut to cradle isolator bushing into cradle, until squarely seated against cradle assembly (Fig. 15).
Fig. 14 Tension Strut Bushing Installed On Tension
Strut
Fig. 15 Tension Strut Bushing Installed In Cradle
When torquing tension strut nut, keep tension strut from turning by holding tension strut at flat using an open end wrench (Fig. 16).
INSTALL
(1) Install lower control arm and tension strut as an assembly back on the vehicle. See Lower Control Arm Installation in this section of the service manual for the required installation procedure.
(2) Install washer on end of tension strut (Fig. 16). Install a NEW tension strut to cradle bracket nut, on tension strut (Fig. 16). Torque the tension strut to cradle bracket retaining nut to 150 Nzm (110 ft. lbs.).
Fig. 16 Tension Strut To Cradle Mounting
(3) Install the wheel and tire assembly.
Page 36
(4)
Tighten the wheel mounting stud nuts in proper sequence (Fig. 17) until all nuts are torqued to half specification. Then repeat the tightening se­quence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 17 Tightening Wheel Nuts
(5)
Lower vehicle so the suspension is supporting vehicles weight (control arm at design height). Torque the lower control arm pivot bushing to cradle bracket attaching bolt (Fig. 18) to 123 Nzm (90 ft. lbs.).
SUSPENSION AND DRIVESHAFTS 2 - 17
(2) Separate the tension strut from the lower con-
trol arm assembly (Fig. 19).
Fig. 19 Tension Strut And Lower Control Arm
Bushing
(3) Replace tension strut to lower control arm isola­tor bushing. Refer to Lower Control Arm Bushing Service in this section of the service manual for ten­sion strut isolator bushing removal and installation procedure.
(4) Install tension strut into tension strut bushing on lower control arm assembly. Position tension strut in lower control arm as shown in (Fig. 20), with word FRONT stamped in tension strut positioned away from control arm (Fig. 20). With an open end wrench on flat of tension strut, to keep tension strut from turning. Torque NEW tension strut to lower control arm retaining nut to 150 Nzm (110 ft. lbs.)
Fig. 18 Lower Control Arm Pivot Bolt
TENSION STRUT TO LOWER CONTROL ARM BUSHING
To remove tension strut to lower control arm bush­ing for replacement, the tension strut and lower con­trol arm MUST first be removed as an assembly from the vehicle.
REMOVE
(1) Remove lower control arm and tension strut as an assembly from the vehicle. See Lower Control Arm Removal in this section of the service manual for the required removal procedure.
Fig. 20 Tension Strut Installed In Lower Control
Arm.
INSTALL
(1) Install lower control arm and tension strut as an assembly back on the vehicle. See Lower Control Arm Installation in this section of the service manual for the required installation procedure.
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2 - 18 SUSPENSION AND DRIVESHAFTS
(2) Install washer on end of tension strut (Fig. 21). Install a NEW tension strut to cradle bracket nut, on tension strut (Fig. 21). Torque the tension strut to cradle bracket retaining nut to 150 Nzm (110 ft. lbs.). When torquing tension strut nut, keep tension strut from turning by holding tension strut at flat using an open end wrench (Fig. 21).
Fig. 21 Tension Strut To Cradle Mounting
(3) Install the wheel and tire assembly.
(4) Tighten the wheel mounting stud nuts in proper sequence (Fig. 22) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 23 Lower Control Arm Pivot Bolt
LOWER CONTROL ARM BUSHING SERVICE
PIVOT BUSHING
REMOVE
To perform removal and replacement of the lower control arm pivot bushing. The control arm and ten­sion strut assembly must be removed from the ve­hicle. The removal and replacement of the lower con­trol arm pivot bushing must be performed using an arbor press.
(1) Remove lower control arm and tension strut as an assembly from the vehicle. See Lower Control Arm Removal in this section of the service manual for the required removal procedure.
(2) Separate the tension strut from the lower con­trol arm assembly.
(3) Position lower control arm in arbor press with large end of pivot bushing inside Receiver, Special Tool MB-990799, and special tool supporting lower control arm (Fig. 1). Position Remover, Special Tool, 6642-2 on top of pivot bushing (Fig. 1). Using arbor press, press on lower control arm pivot bushing until it falls free of lower control arm.
(4) Remove the pressed out lower control arm pivot bushing from the Receiver, Special Tool MB-990799 and discard.
Fig. 22 Tightening Wheel Nuts
(5) Lower vehicle so the suspension is supporting vehicles weight (control arm at design height). Torque the lower control arm pivot bushing to cradle bracket attaching bolt (Fig. 23) to 123 Nzm (90 ft. lbs.).
INSTALL
(1) Turn the lower control arm over in the arbor press. So it is positioned on Receiver, Special Tool, MB-990799 as shown in (Fig. 2).
Position new pivot bushing in lower control
(2) arm so it is square with the bushing hole. Position Installer, Special Tool 6644-1 on top of pivot bushing, with pivot bushing setting in recessed area of In­staller (Fig. 2). Bring down ram of arbor press until it is close to Installer, Special Tool. Then square face
Page 38
SUSPENSION AND DRIVESHAFTS 2 - 19
Fig. 1 Lower Control Arm Pivot Bushing Removal
of Installer, Special Tool 6644-1 with end of ram on arbor press and start to press bushing into lower control arm.
Fig. 2 Installing Lower Control Arm Pivot Bushing
(3) Press lower control arm pivot bushing into lower control arm until Installer, Special Tool 6644-1 squarely bottoms against surface of lower control arm (Fig. 3). When Installer, Special Tool, 6644-1
squarely touches surface of control arm stop installing bushing. When Installer, Special Tool
6644-1 squarely bottoms on control arm, bushing is installed to the correct position in control arm.
(4) Install tension strut into tension strut bushing on the lower control arm assembly. Position tension strut in lower control as shown in (Fig. 4), with word FRONT stamped in tension strut positioned away from control arm. With an open end wrench on flat of tension strut to stop tension strut from turning. Torque NEW tension strut to lower control retaining nut to 150 Nzm (110 ft. lbs.)
(5) Install lower control arm and tension strut as an assembly back on the vehicle. See Lower Control
Fig. 3 Pivot Bushing Installed In Lower Control Arm
Fig. 4 Tension Strut Installed In Lower Control Arm.
Arm Installation in this section of the service manual for the required installation procedure.
TENSION STRUT BUSHING
REMOVE
To perform removal and replacement of the lower control arm tension strut bushing. The control arm and tension strut assembly must be removed from the vehicle. The removal and replacement of the lower control arm tension strut bushing must be performed using an arbor press.
(1) Remove lower control arm and tension strut as an assembly from the vehicle. See Lower Control Arm Removal in this section of the service manual for the required removal procedure.
(2) Separate the tension strut from the lower con­trol arm assembly.
(3) Position lower control arm in arbor press with tension strut bushing inside Receiver, Special Tool MB-990799 and special tool supporting lower control arm (Fig. 5). Position Remover, Special Tool, 6644-4 on top of tension strut bushing (Fig. 5). Using the ar-
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2 - 20 SUSPENSION AND DRIVESHAFTS
bor press, press Remover, Special Tool, 6644-4 down through the tension strut bushing until the arbor press can push it no farther. As Remover, Special Tool, 6644-4 is pressed down through tension strut bushing it will cut the bushing into two pieces.
Fig. 5 Removing Lower Control Arm Tension Strut
Bushing
(4) Remove lower control arm assembly from arbor press. Remove pieces of tension strut and Remover, Special Tool 6644-4, from lower control arm.
INSTALL
(1) Thoroughly lubricate the replacement tension strut bushing, lower control arm and Installer, Spe­cial Tool 6644-3 using Mopart Silicone Spray Lube or an equivalent.
(2) By hand, install tension strut bushing into large end of Installer, Special Tool 6644-3. Press bushing into installer as far as it will go by hand.
(3) Position lower control arm in arbor press, so tension strut hole in lower control arm is centered on Receiver, Special Tool MB-990799. (Fig. 6). Position Installer, Special Tool 6644-3 with previously in­stalled bushing, inside of tension strut bushing hole in lower control arm (Fig. 6). Position Installer, Spe­cial Tool 6644-2 on top of tension strut bushing (Fig.
6). Using the arbor press, press the tension strut bushing into the lower control arm. As the bushing is being pressed into the control arm a pop will be heard. When the pop is heard Installer, Special Tool 6644-3 will slightly move up off the control arm. At this time remove the control arm assembly from the arbor press and pull Special Tool 6644-3 off the ten­sion strut bushing in the control arm. Tension strut bushing is now installed.
Fig. 6 Installing Tension Strut Bushing Into Lower
Control Arm
joint is found to be defective, the entire lower control arm will need to be replaced. Do not attempt any type of repair on the ball joint assembly.
INSPECTION BALL JOINT WEAR
Raise front of vehicle using jack stands or a frame contact type hoist, until front suspension is in full rebound and tires are not in contact with the ground. Grasp tire at top and bottom, and apply an in and out on the wheel and tire. While applying force to the tire, look for any movement between the lower ball joint and lower control arm. If any movement is evi­dent the lower ball joint is worn and the lower control arm requires replacement.
BALL JOINT SEAL INSTALLATION
(1) By hand, initially install the ball joint seal on the lower control arm.
(2) Lower control arm is to be supported using a 1 1/4 inch socket (Fig. 7). Position the 1 1/4 inch socket, lower control arm and Seal Installer, Special Tool MB-990800 in an arbor press (Fig. 7).
BALL JOINTS
The lower front suspension ball joints operate with no free play. See Inspection Ball Joint Wear to deter­mine if the ball joint is worn and requires replacement.
The ball joints are not replaceable as a separate component of the lower control arm assembly. If a ball
Fig. 7 Installing Ball Joint Seal
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SUSPENSION AND DRIVESHAFTS 2 - 21
(3) Using Installer, Special Tool MB-990800, press seal onto ball joint housing until it is squarely seated against top surface of control arm (Fig. 7).
SERVICING STABILIZER BAR AND BUSHINGS
The stabilizer bar interconnects the front MacPher­son strut assemblies of the vehicle and attaches to the front cradle of the vehicle (Fig. 1).
Jounce and rebound movements affecting one wheel are partially transmitted to the opposite wheel to stabilize body roll.
Attachment of stabilizer bar to cradle assembly, is through rubber-isolated bushings (Fig. 1). Stabilizer bar to strut assembly attachment is done utilizing a stabilizer bar link (Fig. 1).
All parts are serviceable, and the stabilizer bar to cradle isolator bushings are split for easy removal and installation. The split in the stabilizer bar to crossmember bushing should be positioned toward the front of the vehicle.
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2 - 22 SUSPENSION AND DRIVESHAFTS
Fig. 1 Front Stabilizer Bar And Stabilizer Bar Mounting
Page 42
SUSPENSION AND DRIVESHAFTS 2 - 23
STABILIZER BAR ISOLATOR BUSHING SERVICE
If only the stabilizer bar isolator bushings require service without any service to the stabilizer bar. The stabilizer bar isolator bushings can be removed from the stabilizer bar without requiring the stabilizer bar to be removed from the vehicle.
ISOLATOR BUSHING REMOVAL
(1) Remove the 2 bolts each, attaching the stabi­lizer bushing retainer and bushing to cradle assembly (Fig. 2).
stabilizer bar, so lower part of stabilizer bar is cen­tered in the middle of the cradle assembly. Failure to do this may cause stabilizer bar to come in contact with other suspension components.
(2) Align the stabilizer bar bushing retainers with
the mounting holes in the cradle assembly (Fig. 2).
Install but do not tighten the 4 bushing retainer to cradle assembly mounting bolts. The 4 retain­ing bolts will be torqued when vehicle is low­ered to the ground.
(3) Lower vehicle to the ground.
(4) With the full weight of the vehicle supported by the suspension. Use a long extension, and torque the 4 stabilizer bar bushing retainer to cradle assembly attaching bolts to 55 Nzm (40 ft. lbs.).
STABILIZER BAR REMOVAL
When removing the front stabilizer bar from the L.H. platform vehicle, it is necessary to remove the entire front cradle module (Fig. 4) from vehicle.
Fig. 2 Stabilizer Bar Isolator Bushing Attachment To
Cradle
(2) Remove the stabilizer bar isolator bushing re-
tainers from the isolator bushings.
(3) Inspect for broken or distorted retainers and bushings. If bushing replacement is required, bushing can be removed by opening slit in bushing and remov­ing bushing from around stabilizer bar. The stabilizer bar to cradle assembly bushings, should be positioned on stabilizer bar, so slit in bushing is positioned to­ward front of vehicle (Fig. 3).
Fig. 3 Isolator Bushings Installed On Stabilizer Bar
ISOLATOR BUSHING INSTALLATION
(1) Install the isolator bushing retainers back on the stabilizer bar isolator bushings.
CAUTION: When stabilizer bar is installed. Position
Fig. 4 L.H. Platform Front Cradle
SUPPORTING ENGINE
To allow for removal of the cradle module assembly from the vehicle. It will be necessary to support the engine and transaxle assembly using Fixture, Engine Support, Special Tool 7137 or equivalent. Refer to (Fig. 5 to 9) for engine supporting locations depending on engine application.
CAUTION: No attempt should be made to support or lift either engine application using the intake mani­fold, or any other location on engine not specified below.
3.3 LTR ENGINE
(1) Mount Fixture, Engine Support Special Tool 7137 or equivalent across engine compartment (Fig.
5). Using nylon webbing material such as seat belt
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2 - 24 SUSPENSION AND DRIVESHAFTS
material or equivalent, mount it to the following loca­tions on the 3.3 ltr. engine.
(2) Remove bolt attaching A/C compressor bracket to front of engine. Install webbing material hook on A/C compressor bolt, install bolt and tighten (Fig. 5 and 6).
(3) Loosen but do not remove generator to engine mounting bolt, remove spacer between generator and engine. Install webbing material hook between gen­erator and engine, re-install and tighten original bolt (Fig. 5 and 6).
(4) Remove electronic ignition coil, mounting bracket bolt from rear of engine. Install webbing ma­terial hook on bracket bolt and re-install and tighten bolt. Note: Route webbing material between fuel
injector rail and valve cover, not between fuel injector rail and intake manifold.
(5) Mount remaining piece of webbing material to left cylinder head using threaded hole on back of cylinder head. Using a bolt of the correct thread size and length, install webbing hook on bolt. Then install bolt into threaded hole on back of cylinder head and tighten bolt.
(6) Securely attach pieces of webbing material to hook on engine holding fixture (Fig. 5). Tighten hook on engine holding fixture until all slack is removed from all 4 pieces of webbing material.
Fig. 6 Front Engine Support Attaching Locations 3.3
Ltr.
of the correct thread size and length, install webbing hook on bolt. Then install bolt into threaded hole on back of cylinder heads and tighten bolt.
(5) Securely attach pieces of webbing material to hook on engine holding fixture (Fig. 7). Tighten hook on engine holding fixture until all slack is remove from all 4 pieces of webbing material.
Fig. 5 Engine Supporting Fixture Installed 3.3 Ltr.
3.5 LTR ENGINE
(1) Mount Fixture, Engine Support Special Tool
7137 or equivalent across engine compartment (Fig.
7). Using nylon webbing material such as seat belt material or equivalent, mount it to the following loca­tions on the 3.5 ltr. engine.
(2) Remove bolt attaching timing belt housing to front of engine assembly (Fig. 7 and 8). Install web­bing material hook on timing belt housing attaching bolt, install bolt and tighten (Fig. 7 and 8).
(3) Remove generator to generator mounting bracket attaching nut and bolt (Fig. 9). Install web­bing material hook on generator mounting bolt, re­install and tighten original nut and bolt (Fig. 9).
(4) Mount remaining pieces of webbing material to back of right and left cylinder head using the threaded hole on back of cylinder heads. Using a bolt
Fig. 7 Engine Supporting Fixture Installed 3.5 Ltr.
CRADLE ASSEMBLY REMOVAL ALL ENGINES
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove both front wheel and tire assemblies from the vehicle.
Page 44
Fig. 8 Front Engine Support Attachment To Timing
Belt Housing
SUSPENSION AND DRIVESHAFTS 2 - 25
CAUTION: When lower control is separated from steering knuckle, do not let ball joint seal hit up against steering knuckle. If ball joint seal hits steer­ing knuckle, seal damage may occur. If ball joint seal becomes torn, replace seal before assembling lower control arm to knuckle.
(4) Carefully insert a pry bar between lower control arm and steering knuckle (Fig. 11), to separate ball joint stud from steering knuckle (Fig. 11). Note: Use
caution when separating ball joint stud from steering knuckle so ball joint seal does not get cut.
CAUTION: Pulling steering knuckle out from vehicle after releasing from ball joint can separate inner tripod joint. See Driveshafts.
Fig. 9 Front Engine Support Attachment To
Generator Bracket
(3) Remove left and right ball joint stud to steering
knuckle clamp nut and bolt (Fig. 10).
Fig. 10 Control Arm To Steering Knuckle
Attachment
Fig. 11 Separating Ball Joint From Steering Knuckle
(5) Remove ground strap from cradle assembly. Ground strap is located on right side of cradle below half shaft (Fig. 12).
Fig. 12 Ground Strap
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2 - 26 SUSPENSION AND DRIVESHAFTS
(6) Remove the 4 nuts attaching motor mounts to
cradle assembly (Fig. 13).
Fig. 15 Stabilizer Bar Isolator Bushing Attachment
To Cradle
MOVE CRADLE WITHOUT USING JACK STANDS TO SUPPORT COMPONENTS.
(9) Position a jack stand under front of cradle and at center of transaxle to cradle assembly mount (Fig.
16). Raise jack stand at transaxle mount until tran­saxle mount just lifts off cradle assembly.
Fig. 13 Motor Mount To Cradle Assembly
Attachment
(7) Remove the 4 bolts attaching transaxle mount
to rear of cradle assembly (Fig. 14).
Fig. 14 Transmission Mount To Cradle Assembly
Mounting Bolts
(8) Remove the 2 bolts each, attaching the stabi­lizer bushing retainer and bushing to cradle assembly (Fig. 15).
WARNING: SUPPORT CRADLE ASSEMBLY AND TRANSAXLE ASSEMBLY DURING CRADLE ASSEMBLY RE­MOVAL FROM VEHICLE. DO NOT ATTEMPT TO RE-
THE JACK STANDS ARE REQUIRED TO
Fig. 16 Jack Stands Supporting Cradle And
Transaxle
(10) Cradle assembly is now ready to be removed from vehicle using the following procedure. A helper will be required when removing cradle assembly from vehicle.
Loosen but do not fully remove the 2 rear cradle assembly to body attaching bolts (Fig. 17).
Loosen and remove the 2 front cradle assembly to body attaching bolts (Fig. 17).
With a helper supporting rear of cradle assembly and the jack stand supporting transaxle. Remove the 2 rear cradle assembly to body attaching bolts (Fig.
17).
Page 46
SUSPENSION AND DRIVESHAFTS 2 - 27
Slowly lower front jack stand until weight of en­gine is supported by engine support fixture and motor mount bolts are clear of cradle assembly. With a helper at rear of cradle assembly, lift front of cradle assembly off jack stand and remove from vehicle.
bushing from around stabilizer bar. The stabilizer bar to cradle assembly bushings, should be positioned on stabilizer bar, so slit in bushing is positioned toward front of vehicle (Fig. 19).
Fig. 19 Isolator Bushings Installed On Stabilizer Bar
CRADLE ASSEMBLY INSTALLATION ALL ENGINES
(1) Install stabilizer bar, isolator bushings and re­tainers back in vehicle as an assembly (Fig. 18). Be sure stabilizer bar in installed through openings in splash shields (Fig. 18). Install the stabilizer bar link to stabilizer bar attaching nuts. Torque stabilizer bar link to stabilizer bar attaching nut to 95 Nzm (70 ft. lbs.).
(2) Tie stabilizer bar up against the 2 transaxle to engine block brackets (Fig. 20). This will keep stabi­lizer bar out of the way when installing cradle assem­bly.
Fig. 17 Cradle Assembly To Body Attaching
Locations
(11) After cradle assembly is removed from vehicle. Remove the 2 stabilizer bar, to stabilizer bar link attaching nuts (Fig. 18). Remove stabilizer bar assem­bly from vehicle.
Fig. 18 Stabilizer Bar Removal And Installation
STABILIZER BAR AND BUSHING INSPECTION
Inspect for broken or distorted retainers and bush­ings. If bushing replacement is required, bushing can be removed by opening slit in bushing and removing
Fig. 20 Stabilizer Bar Stored For Cradle Installation
(3) With the aid of a helper raise cradle assembly (Fig. 1) back up into vehicle, resting front of cradle assembly on a jack stand. Then use following proce­dure to install cradle assembly back into vehicle.
With the aid of a helper, raise rear of cradle assem­bly up far enough by hand to start the 2 rear cradle assembly to body attaching bolts (Fig. 21). Install bolts far enough to securely hold cradle assembly in place but DO NOT TIGHTEN.
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2 - 28 SUSPENSION AND DRIVESHAFTS
Using jack stand raise front of cradle assembly up against bottom of motor mounts. Be sure all 4 motor mount studs come through holes in cradle assembly.
Continue to raise cradle assembly and engine using jack stand until the 2 front cradle assembly to body attaching bolts (Fig. 21) can be started.
Lower transaxle and align transaxle mount with the 4 transaxle mount attaching holes in the cradle assembly. Install BUT DO NOT TIGHTEN the 4 tran­saxle mount to cradle assembly attaching bolts (Fig.
14). The 2 long bolts go in the front cradle as-
sembly to transaxle mount holes.
CAUTION: Before tightening cradle assembly to body attaching bolts. Check that all 4 cradle assem­bly to body mounting bolts are installed straight into mounting plates in frame rails and mounting plates are not cocked inside the frame rails.
Using a crisscross pattern, tighten all 4 cradle assembly to body attaching bolts (Fig. 21) until cradle is seated up against body. Then repeating the criss­cross pattern, torque all 4 cradle assembly to body mounting bolts to 155 Nzm (115 ft. lbs.).
Fig. 22 Transmission Mount To Cradle Assembly
Mounting Bolts
CAUTION: When stabilizer bar is installed. Position stabilizer bar, so lower part of stabilizer bar is cen­tered in the middle of the cradle assembly. Failure to do this may cause stabilizer bar to come in contact with other suspension components.
(5) Untie the stabilizer bar from brackets and posi­tion it on cradle assembly. Align the stabilizer bar bushing retainers with the mounting holes in the cradle assembly (Fig. 15). Install but do not tighten the 4 bushing retainer to cradle assembly mounting bolts. The 4 retaining bolts will be torqued when vehicle is lowered to the ground.
(6) Install the 4 motor mount to cradle assembly attaching nuts (Fig. 13). Torque the 4 nuts to 61 Nzm (45 ft. lbs).
(7) Install ground strap on cradle assembly (Fig.
12). Be sure ground strap to cradle screw is securely tightened.
Fig. 21 Cradle Assembly To Body Attaching Bolts
(4) Tighten the 4 transaxle mount to cradle assem-
bly mounting bolts (Fig. 22).
CAUTION: Pulling steering knuckle out from vehicle after releasing from ball joint can separate inner C/V joint. See Driveshafts.
CAUTION: When ball joint stud is installed into steering knuckle, do not let ball joint seal hit up against steering knuckle. If ball joint seal hits steer­ing knuckle, seal damage may occur. If ball joint seal becomes torn, replace seal before assembling lower control arm to knuckle.
(8) Install lower ball joint studs into steering knuckles. Install steering knuckle to lower ball joint stud, clamp bolts and nuts into steering knuckles (Fig. 23). Torque clamp bolt to 55 Nzm (40 ft. lbs.).
(9) Install the wheel and tire assembly.
(10) Tighten the wheel mounting stud nuts in proper sequence (Fig. 24) until all nuts are torqued to half specification. Then repeat the tightening se­quence to the full specified torque of 129 Nzm (95 ft. lbs.).
(11) Lower vehicle to the ground.
Page 48
Fig. 23 Control Arm To Steering Knuckle
Attachment
SUSPENSION AND DRIVESHAFTS 2 - 29
The front suspension knuckle is not a serviceable component. Do not attempt to straighten or repair the front suspension knuckle in any way.
Service repair or replacement of the front (drive) hub and bearing, can be done with the front suspen­sion knuckle remaining on the vehicle.
Fig. 24 Tightening Wheel Nuts
(12) With the full weight of the vehicle supported by the suspension. Use a long extension, and torque the 4 stabilizer bar bushing retainer to cradle assem­bly attaching bolts to 55 Nzm (40 ft. lbs.).
(13) Remove the webbing material from the engine and the engine support fixture from the vehicle.
(14) Position vehicle on an alignment rack and check that the vehicles Toe is within specifications. Adjust the vehicle Toe setting if not within specifica­tions.
STEERING KNUCKLE SERVICE
The front suspension knuckle (Fig. 1) provides for steering control of the vehicle. Supports the brake caliper and absorbs the loads exerted during vehicle braking. It also supports the front (driving) hub and bearing and stub axle assembly.
The front suspension knuckle also provides the abil­ity to align the front wheels of the vehicle. This is done by allowing for front wheel Toe adjustment.
Fig. 1 Front Knuckle Assembly
REMOVE
(1)
Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubri­cation and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove the front wheel and tire assembly from
the vehicle.
(3) Remove the front caliper assembly from the front steering knuckle assembly (Fig. 2). Refer to Front Disc Brake Service in the Brake Section of this service manual for caliper removal procedure.
(4) Remove front braking disk (rotor) from hub, by pulling it straight off wheel mounting studs (Fig. 3).
(5)
Remove screw attaching ABS speed sensor
head to steering knuckle. Speed sensor head
should be removed from steering knuckle, to avoid damage to speed sensor by outer C/V joint when hub and bearing is removed.
(6) Carefully, remove sensor head from steering knuckle. If the sensor has seized, due to corrosion,
Page 49
2 - 30 SUSPENSION AND DRIVESHAFTS
Fig. 2 Disc Brake Caliper Mounting
Fig. 3 Removing Braking Disc
DO NOT USE PLIERS ON SENSOR HEAD. Use a hammer and punch (Fig. 4) to tap edge of sensor ear, rocking sensor side to side until free.
(7) Remove the hub and bearing to stub axle re-
taining nut (Fig. 5).
(8) Remove the 3 steering knuckle to hub and bear-
ing assembly attaching bolts (Fig. 6).
Fig. 4 Speed Sensor Head Removal (Typical)
Fig. 5 Hub And Bearing To Stub Axle Retaining Nut
CAUTION: If metal seal (Fig. 7) on hub and bearing assembly is seized to steering knuckle and be­comes dislodged on hub and bearing assembly dur­ing bearing removal. The hub and bearing assembly MUST not be re-used and MUST be replaced with a new hub and bearing assembly. Also if flinger disc (Fig. 7) becomes damaged (bent or dented) during removal, hub and bearing assembly must be re­placed with a new hub and bearing assembly.
Fig. 6 Hub And Bearing Assembly Retaining Bolts
(9) Remove hub and bearing assembly from steer­ing knuckle. It is removed by sliding it straight out of steering knuckle and off end of stub axle (Fig. 8). If hub and bearing assembly will not slide out of knuckle, insert a pry bar between hub and bearing
Page 50
SUSPENSION AND DRIVESHAFTS 2 - 31
Fig. 9 Prying Hub And Bearing Assembly From
Steering Knuckle
Fig. 7 Hub And Bearing Assembly Seal
assembly and steering knuckle (Fig. 9) and gently pry hub and bearing from knuckle. If stub shaft is frozen to hub and bearing assembly tap end of stub shaft with soft face hammer to free it from hub and bearing spline.
Fig. 8 Hub And Bearing Assembly Removal And
Installation
(10) Remove the ball joint stud to steering knuckle
clamp nut and bolt (Fig. 10).
CAUTION: When lower control arm is separated from steering knuckle, do not let ball joint seal hit up against steering knuckle. If ball joint seal hits steering knuckle, seal damage may occur. If ball joint seal becomes torn, replace seal before assem­bling lower control arm to knuckle.
Fig. 10 Control Arm To Steering Knuckle
Attachment
(11) Carefully insert a pry bar between lower con­trol arm and steering knuckle (Fig. 11). Push down on pry bar to separate ball joint stud from steering knuckle (Fig. 11). Note: Use caution when sepa-
rating ball joint stud from steering knuckle so ball joint seal does not get cut.
CAUTION: The strut assembly to steering knuckle bolts are serrated were they go through strut as­sembly and steering knuckle. When removing bolts, turn nuts off bolts DO NOT TURN BOLTS IN STEER­ING KNUCKLE. If bolts are turned damage to steer­ing knuckle will result.
(12) Remove the strut assembly to steering knuckle attaching bolts (Fig. 12).
(13) Remove the steering knuckle from the vehicle.
INSTALL
(1) Install steering knuckle on ball joint stud. In­stall steering knuckle to lower ball joint stud, clamp
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2 - 32 SUSPENSION AND DRIVESHAFTS
(2) Position steering knuckle neck into strut assem­bly.
CAUTION: The strut assembly to steering knuckle bolts are serrated where they go through strut as­sembly and steering knuckle. When installing bolts, turn nuts onto bolts DO NOT TURN BOLTS IN STEERING KNUCKLE. If bolts are turned damage to steering knuckle will result.
(3) Install the strut assembly to steering knuckle attaching bolts (Fig. 12). Install nuts on attaching bolts (Fig. 12). Torque the strut assembly to steering knuckle attaching bolt nuts to 169 Nzm (125 ft. lbs.).
TURN NUTS ON BOLTS DO NOT TURN BOLTS.
Fig. 11 Separating Ball Joint From Steering Knuckle
Fig. 12 Strut Assembly To Steering Knuckle
Attaching Bolts
bolt and nut into steering knuckle (Fig. 13). Torque clamp bolt to 55 Nzm (40 ft. lbs.).
CAUTION: Hub and bearing assembly mounting sur­faces on steering knuckle and halfshaft (Fig. 14) must be smooth and completely free of foreign ma­terial or nicks.
Fig. 14 Hub And Bearing Assembly Mounting
Surfaces
CAUTION: When installing hub and bearing assem­bly into steering knuckle, be careful not to damage the flinger disc (Fig. 7) on hub and bearing assem­bly. If flinger disc becomes damaged, hub and bear­ing assembly MUST not be used and MUST be re­placed with a new hub and bearing assembly.
Fig. 13 Control Arm To Steering Knuckle
Attachment
(4) Install hub and bearing assembly onto stub shaft and into steering knuckle until squarely seated on face of steering knuckle. (Fig. 8).
(5) Install the 3 steering knuckle to hub and bear­ing assembly attaching bolts (Fig. 15). Equally tighten all 3 mounting bolts until hub and bearing assembly is squarely seated against front of steering knuckle. Then torque all 3 hub and bearing assembly mounting bolts to 110 Nzm (80 ft.lbs.)
Page 52
Fig. 15 Hub And Bearing Assembly Retaining Bolts
CAUTION: The hub and bearing assembly to stub shaft retaining nut (Fig. 16) is a prevailing torque nut and can not be re-used. A NEW retaining nut MUST be used when assembled.
SUSPENSION AND DRIVESHAFTS 2 - 33
(6) Install a NEW hub and bearing assembly to
stub shaft retaining nut (Fig. 16). Tighten, but do
not torque the hub nut at this time.
Fig. 16 Hub And Bearing To Stub Axle Retaining Nut
(7) Coat speed sensor head with High Temperature Multi-purpose E.P. Grease before installing into the steering knuckle. Install speed sensor head into steer­ing knuckle. Install screw tighten to 7 Nzm (60 in. lbs.).
(8) Install the braking disk back on the hub and bearing assembly (Fig. 17).
(9) Install front brake caliper back over braking disc and align with caliper mounting holes on steer­ing knuckle (Fig. 18). Refer to Front Disc Brake Ser­vice in the Brake Section of this service manual for caliper installation procedure. Install the caliper to steering knuckle attaching bolts and torque to 19 Nzm (168 in. lbs.).
Fig. 17 Installing Braking Disc
Fig. 18 Disc Brake Caliper Mounting
(10) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 19) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
(11) Lower vehicle to the ground.
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2 - 34 SUSPENSION AND DRIVESHAFTS
Fig. 19 Tightening Wheel Nuts
CAUTION: When torquing hub and bearing assem­bly to stub shaft retaining nut, do not exceed the maximum torque of 176 Nzm (130 ft. lbs.). If the maximum torque is exceeded this may result in a failure of the drive shaft.
(12) With the vehicle brakes applied to keep vehicle from moving. Tighten the NEW stub shaft to hub and bearing assembly retaining nut to 163 Nzm ± 14 (120 ft. lbs. ± 10) (Fig. 20).
1994 New Yorker, LHS, Concorde, Intrepid and Vision Publication No. 81-270-4140 TSB 02-13-94 September 23, 1994
(2) Remove the front wheel and tire assembly from
the vehicle.
(3) Remove the front caliper assembly from the front steering knuckle assembly (Fig. 1). Refer to Front Disc Brake Service in the Brake Section of this service manual for caliper removal procedure.
Fig. 1 Disc Brake Caliper Mounting
(4) Remove front braking disk (rotor) from hub, by pulling it straight off wheel mounting studs (Fig. 2).
Fig. 20 Tighten Hub And Bearing Retaining Nut
HUB AND BEARING ASSEMBLY
This unit is serviced only as a complete assembly. It is mounted to the steering knuckle by 3 mounting bolts that are removed from the rear of the steering knuckle.
REMOVAL
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
Fig. 2 Removing Braking Disc
(5) Remove the hub and bearing to stub axle re-
taining nut (Fig. 3).
(6) Remove the 3 steering knuckle to hub and bear-
ing assembly attaching bolts (Fig. 4).
Page 54
Fig. 3 Hub And Bearing To Stub Axle Retaining Nut
SUSPENSION AND DRIVESHAFTS 2 - 35
Fig. 4 Hub And Bearing Assembly Retaining Bolts
CAUTION: If metal seal (Fig. 5) on hub and bearing assembly is seized to steering knuckle and be­comes dislodged on hub and bearing assembly dur­ing bearing removal. The hub and bearing assembly MUST not be reused and MUST be replaced with a new hub and bearing assembly.
CAUTION: When removing hub and bearing assem­bly from steering knuckle, be careful not to damage the flinger disc (Fig. 5) on hub and bearing assem­bly. If flinger disc becomes damaged, hub and bear­ing assembly MUST not be used and MUST be re­placed with a new hub and bearing assembly.
(7) Remove hub and bearing assembly from steer­ing knuckle, by sliding it straight out of steering knuckle and off end of stub axle (Fig. 6). If hub and bearing assembly will not slide out of knuckle. Insert a pry bar between hub and bearing assembly and steering knuckle (Fig. 7) and gently pry hub and bearing from knuckle. If stub shaft is frozen to hub
Fig. 5 Hub And Bearing Assembly Seal
and bearing assembly tap end of stub shaft with soft face hammer to free it from hub and bearing spline.
Fig. 6 Hub And Bearing Assembly Removal And
Installation
INSTALLATION
CAUTION: Hub and bearing assembly mounting sur­faces on steering knuckle and halfshaft (Fig. 8) must be smooth and completely free of foreign material or nicks.
CAUTION: When installing hub and bearing assem­bly into steering knuckle, be careful not to damage the flinger disc (Fig. 5) on hub and bearing assem­bly. If flinger disc becomes damaged, hub and bear­ing assembly MUST not be used and MUST be re­placed with a new hub and bearing assembly.
Page 55
2 - 36 SUSPENSION AND DRIVESHAFTS
Fig. 7 Prying Hub And Bearing Assembly From
Steering Knuckle
Fig. 8 Hub And Bearing Assembly Mounting
Surfaces
(1) Install hub and bearing assembly onto stub shaft and into steering knuckle until squarely seated on face of steering knuckle. (Fig. 6).
(2) Install the 3 hub and bearing assembly to steer­ing knuckle attaching bolts (Fig. 9). Equally tighten all 3 mounting bolts until hub and bearing assembly is squarely seated against front of steering knuckle. Then torque all 3 hub and bearing assembly mount­ing bolts to 110 Nzm (80 ft.lbs.)
Fig. 9 Hub And Bearing Assembly Retaining Bolts
Fig. 10 Hub And Bearing To Stub Axle Retaining Nut
CAUTION: The hub and bearing assembly to stub shaft retaining nut (Fig. 10) is a prevailing torque nut and can not be re-used. A NEW retaining nut MUST be used when assembled.
(3) Install a NEW hub and bearing assembly to stub shaft retaining nut (Fig. 10). Tighten, but do
not torque the hub nut at this time.
(4) Install the braking disk back on the hub and bearing assembly (Fig. 11).
Fig. 11 Installing Braking Disc
Page 56
(5) Install front brake caliper back over braking disc and align with caliper mounting holes on steer­ing knuckle (Fig. 12). Refer to Front Disc Brake Ser­vice in the Brake Section of this service manual for caliper installation procedure. Install the caliper adapter to steering knuckle attaching bolts and torque to 19 Nzm (168 in. lbs.).
1994 New Yorker, LHS, Concorde, Intrepid and Vision
SUSPENSION AND DRIVESHAFTS 2 - 37
Publication No. 81-270-4140 TSB 02-13-94 September 23, 1994
maximum torque of 176 Nzm (130 ft. lbs.). If the maximum torque is exceeded this may result in a failure of the drive shaft.
(8) With the vehicle brakes applied to keep vehicle from moving. Torque the NEW stub shaft to hub and bearing assembly retaining nut to 163 Nzm ± 14 (120 ft. lbs. ± 10) (Fig. 14).
Fig. 12 Disc Brake Caliper Mounting
(6) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 13) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 13 Tightening Wheel Nuts
(7) Lower vehicle to the ground.
CAUTION: When torquing hub and bearing assem­bly to stub shaft retaining nut, do not exceed the
Fig. 14 Tighten Hub And Bearing Retaining Nut
(9) Check the Toe setting on the vehicle and reset if
not with in specifications.
SERVICING WHEEL STUDS
The L.H. platform vehicles use a one piece, lubri-
cated for life hub and bearing assembly.
CAUTION: If wheel attaching stud needs to be re­placed in the hub and bearing assembly the studs CAN NOT be hammered out of the hub flange. If a stud is removed by hammering it out of the bearing flange, damage to the hub and bearing assembly will occur leading to premature bearing failure.
The following procedure and special tools shown MUST be used when replacing wheel attaching studs.
The hub and bearing assembly does not require removal from the steering knuckle to replace wheel attaching studs in the hub and bearing assembly.
REMOVE
(1)
Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubri­cation and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove the front wheel and tire assembly from
the vehicle.
(3) Remove the front caliper assembly from the
front steering knuckle assembly (Fig. 1). Refer to
Page 57
2 - 38 SUSPENSION AND DRIVESHAFTS
Front Disc Brake Service in the Brake Section of this service manual for caliper removal procedure.
Fig. 1 Disc Brake Caliper Mounting
(4) Remove front braking disk (rotor) from hub, by
pulling it straight off wheel mounting studs (Fig. 2).
Fig. 3 Removing Wheel Stud From Hub And Bearing
INSTALL
(1) Install replacement wheel stud into flange of hub and bearing assembly. Install washers on wheel stud, then install a wheel lug nut on stud with flat side of lug nut against washers (Fig. 4).
Fig. 2 Removing Braking Disc
(5) Install a lug nut on the wheel stud to be re­moved from the hub and bearing assembly (Fig. 3) so the threads on stud are even with end of lug nut. Install Remover, Special Tool C-4150 on hub and bearing assembly flange and wheel stud (Fig. 3).
(6) Tighten down on special tool, pushing wheel stud out of the hub and bearing assembly flange. When shoulder of wheel stud is past flange remove special tool from hub and bearing assembly. Remove lug nut from stud and remove wheel stud from flange.
Fig. 4 Installing Wheel Stud Into Hub And Bearing
(2) Tighten the wheel lug nut, pulling the wheel stud into the flange of the hub and bearing assembly. When the head of the stud is fully seated against the bearing flange, remove lug nut and washers from wheel stud.
Page 58
(3) Install the braking disk back on the hub and
bearing assembly (Fig. 5).
SUSPENSION AND DRIVESHAFTS 2 - 39
Fig. 5 Installing Braking Disc
(4) Install front brake caliper back over braking disc and align with caliper mounting holes on steer­ing knuckle (Fig. 6). Refer to Front Disc Brake Ser­vice in the Brake Section of this service manual for caliper installation procedure. Install the caliper adapter to steering knuckle attaching bolts and torque to 19 Nzm (168 in. lbs.).
(5) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 7) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
(6) Lower vehicle to the ground.
Fig. 6 Disc Brake Caliper Mounting
Fig. 7 Tightening Wheel Nuts
Page 59
2 - 40 SUSPENSION AND DRIVESHAFTS
DRIVESHAFTS
INDEX
page page
Driveshaft Reconditioning Procedure .......... 46
General Information ....................... 40
Inner Tripod Joint Seal Boot .................46
GENERAL INFORMATION
All L.H. platform vehicles are equipped with an un­equal length drive shaft system (Fig. 1). The left side of the vehicle is equipped with a longer drive shaft than the right side of the vehicle. The L.H. platform uses solid interconnecting shafts on both sides of the vehicle.
The driveshaft assemblies are three piece units. Each driveshaft has a Tripod Joint, an Interconnect­ing Shaft and a outer C/V joint. The Tripod Joint is splined onto the transaxle stub shaft, and the outer C/V joint has a stub shaft that is splined into the front wheel hub and bearing assembly.
Outer C/V Joint Sealing Boot Service .......... 50
Service Procedures ....................... 42
Servicing Driveshafts ...................... 42
The inner tripod joint boots, on the L.H. plat­form vehicle are of different materials. The left inner boot is made of high temperature applica­tion silicone, and the right inner boot is made of hytrel plastic. When drive shaft boots are re­placed be sure boots of the correct material are used on the correct side of the vehicle.
The driveshafts used on the L.H. platform vehicles are supplied by Saginaw Division for all available drivelines.
Fig. 1 L.H. Platform Driveshafts (Halfshafts)
Page 60
SUSPENSION AND DRIVESHAFTS 2 - 41
SUSPENSION/STEERING/DIAGNOSIS FRONT WHEEL DRIVE
Page 61
2 - 42 SUSPENSION AND DRIVESHAFTS
SERVICE PROCEDURES
Procedures for removal and installation of drive­shafts on the L.H. platform vehicles are different and somewhat easier, then those on other front wheel drive vehicles. This new drive shaft design, allows both drive shafts to be removed from the vehicle without dismantling the transaxle.
CAUTION: Boot sealing is vital to retain special lubri­cants and to prevent foreign contaminants from enter­ing the C/V joint. Mishandling, such as allowing the assemblies to dangle unsupported, pulling or pushing the ends can cut boots or damage C/V joints. The L.H. platform driveshafts use no retention system to retain the spider assembly in the tripod housing. During re­moval and installation procedures always support both ends of the driveshaft to prevent damage or disengag­ing tripod joint. Therefore, do not pull on the intercon­necting shaft when attempting to remove drive shafts from vehicle.
SERVICING DRIVESHAFTS
REMOVE
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove the front wheel and tire assembly from the vehicle.
(3) Remove the front caliper assembly from the front steering knuckle assembly (Fig. 1). Refer to Front Disc Brake Service in the Brake Section of this service manual for caliper removal procedure.
Fig. 2 Removing Braking Disc
Fig. 3 Speed Sensor Cable Routing Bracket
Fig. 1 Disc Brake Caliper Mounting
(4) Remove front braking disk (rotor) from hub, by pulling it straight off wheel mounting studs (Fig. 2).
(5) Remove the speed sensor cable routing bracket from the strut assembly (Fig. 3).
(6) Remove the hub and bearing to stub axle re­taining nut (Fig. 4).
Fig. 4 Hub And Bearing To Stub Axle Retaining Nut
Page 62
SUSPENSION AND DRIVESHAFTS 2 - 43
(7) Dislodge inner tripod joint from stub shaft re­taining snap ring on transaxle assembly (Fig. 5). In­ner tripod joint is dislodged from stub shaft retaining snap ring, by inserting a pry bar between transaxle case and inner tripod joint and prying on tripod joint.
Only disengage the inner tripod joint from the retaining snap ring. Do not attempt to remove the inner tripod joint from the transmission stub shaft at this time.
CAUTION: When removing outer C/V joint from hub and bearing assembly, do not allow the flinger disk (Fig. 7) on hub and bearing assembly to become damaged. Damage to the flinger disk will cause dirt and water intrusion into bearing and premature bearing failure.
(10) Hold outer C/V joint assembly with one hand. Grasp steering knuckle with other and rotate it out and to the rear of the vehicle, until outer C/V joint clears hub and bearing assembly (Fig. 7).
Fig. 5 Inner Tripod Joint Removal From Stub Shaft
CAUTION: The strut assembly to steering knuckle bolts are serrated were they go through strut as­sembly and steering knuckle. When removing bolts, turn nuts off bolts DO NOT TURN BOLTS IN STEER­ING KNUCKLE. If bolts are turned damage to steer­ing knuckle will result.
(8) Remove the strut assembly to steering knuckle
attaching bolts (Fig. 6).
Fig. 6 Strut Assembly To Steering Knuckle
Attaching Bolts
(9) Remove the top of the steering knuckle from the
strut assembly.
Fig. 7 Outer C/V Joint Removal From Hub and
Bearing
(11) Remove drive shaft inner tripod joint from transaxle stub shaft. When removing drive shaft,
do not pull on interconnecting shaft to remove inner tripod joint from stub shaft. Removal in this manner will separate the spider assembly from the tripod joint housing. Grasp inner tri­pod joint (Fig. 8) and interconnecting shaft and pull on both pieces at the same time.
INSTALL
CAUTION: The inboard tripod joint retaining circlip and O-Ring seal (Fig. 9) on the transaxle stub shaft are not re-usable. Whenever the inboard tripod joint is removed from the stub shaft, the retaining circlip and O-Ring seal MUST BE REPLACED. The retaining circlip and O-Ring seal is included in all service kits requiring removal of the inboard tripod joint from the stub shaft.
(1) Replace O-Ring seal and tripod joint retaining circlip (Fig. 9) on the transaxle stub shaft.
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2 - 44 SUSPENSION AND DRIVESHAFTS
Fig. 8 Inner Tripod Joint Removal From Stub Shaft
Fig. 9 Tripod Joint Retaining Circlip And O-Ring
Seal
(2) Evenly apply a bead of grease, such as Mopar Multi-Purpose Lubricant or an equivalent, around spline of inner tripod joint (Fig. 10), where the O-Ring seats against tripod joint. This will spread grease onto stub shaft during tripod joint installation pre­venting corrosion and help to seal the O-ring.
(3) Install drive shaft through hole in splash shield. Grasp inner tripod joint in one hand and intercon­necting shaft in the other. Align inner tripod joint spline with stub shaft spline on transaxle (Fig. 11). Use a rocking motion with the inner tripod joint, to get it past the circlip on the transaxle stub shaft.
(4) Continue pushing tripod joint onto transaxle stub shaft until it stops moving. The O-Ring seal on the stub should not be visible when inner tripod joint is fully installed on stub shaft. To check that inner
tripod joint retaining circlip is locked into tri­pod joint, grasp inner tripod joint and pull on it by hand. If circlip is locked into tripod joint, tripod joint will not move on stub shaft.
Fig. 10 Grease Applied To Inner Tripod Joint
Housing Spline
Fig. 11 Inner Tripod Joint Installation On Stub Shaft
CAUTION: When installing outer C/V joint into the hub and bearing assembly, do not allow the flinger disk (Fig. 12) on hub and bearing assembly to be­come damaged. Damage to the flinger disk can cause dirt and water intrusion into bearing and pre­mature bearing failure.
(5) Hold outer C/V joint assembly with one hand. Grasp steering knuckle with other hand and rotate it out and to the rear of the vehicle. Install outer C/V joint into the hub and bearing assembly (Fig. 12).
(6) Install the top of the steering knuckle into the strut assembly. Align the steering knuckle to strut assembly mounting holes.
CAUTION: The strut assembly to steering knuckle bolts are serrated where they go through strut as­sembly and steering knuckle. When installing bolts, turn nuts onto bolts DO NOT TURN BOLTS IN STEERING KNUCKLE. If bolts are turned damage to steering knuckle will result.
Page 64
Fig. 12 Outer C/V Joint Installation Into Hub and
Bearing
(7) Install the strut assembly to steering knuckle attaching bolts (Fig. 13). Install nuts on attaching bolts (Fig. 13). Torque the strut assembly to steering knuckle attaching bolt nuts to 169 Nzm (125 ft. lbs.).
TURN NUTS ON BOLTS DO NOT TURN BOLTS.
SUSPENSION AND DRIVESHAFTS 2 - 45
Fig. 14 Hub And Bearing To Stub Axle Retaining Nut
(9) Install speed sensor cable routing bracket on front strut assembly. Then install and securely tighten routing bracket attaching screw (Fig. 3).
(10) Install the braking disk back on the hub and bearing assembly (Fig. 15).
Fig. 13 Strut Assembly To Steering Knuckle
Attaching Bolts
CAUTION: The hub and bearing assembly to stub shaft retaining nut (Fig. 14) is a prevailing torque nut and can not be re-used. A NEW retaining nut MUST be used when assembled.
(8) Install a NEW hub and bearing assembly to
stub shaft retaining nut (Fig. 14). Tighten but do
not torque the hub nut at this time.
Fig. 15 Installing Braking Disc
(11) Install front brake caliper back over braking disc and align with caliper mounting holes on steer­ing knuckle (Fig. 16). Refer to Front Disc Brake Ser­vice in the Brake Section of this service manual for caliper installation procedure. Install the caliper to steering knuckle attaching bolts and torque to 19 Nzm (168 in. lbs.).
(12) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 17) until all nuts are torqued to half
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2 - 46 SUSPENSION AND DRIVESHAFTS
Fig. 16 Disc Brake Caliper Mounting
specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
1994 New Yorker, LHS, Concorde, Intrepid and Vision Publication No. 81-270-4140 TSB 02-13-94 September 23, 1994
Fig. 18 Tighten Hub And Bearing Retaining Nut
DRIVESHAFT RECONDITIONING PROCEDURE
The only service which is to be performed on the driveshaft assemblies is the replacement of the drive shaft seal boots.
If any failure of internal driveshaft components is diagnosed during a vehicle road test or disassembly of the drive shaft, the drive shaft will need to be re­placed as an assembly.
Note: that lubricant requirements and quanti­ties are different for Inner Joints than for Outer Joints. Use only the recommended lubricants.
See (Fig. 1) for the exploded view of the front drive shaft components and there location in the assembly.
Fig. 17 Tightening Wheel Nuts
(13) Lower vehicle to the ground.
CAUTION: When torquing hub and bearing assem­bly to stub shaft retaining nut, do not exceed the maximum torque of 176 Nzm (130 ft. lbs.). If the maximum torque is exceeded this may result in a failure of the drive shaft.
(14) With the vehicle brakes applied to keep vehicle from moving. Torque the NEW stub shaft to hub and bearing assembly retaining nut to 163 Nzm ± 14 (120 ft. lbs. ± 10) (Fig. 18).
INNER TRIPOD JOINT SEAL BOOT
REMOVE
To remove sealing boots from driveshafts for re­placement, the drive shaft assemblies must be re­moved from the vehicle. See Servicing Driveshaft in this section of the service manual for the required drive shaft removal and replacement procedure.
The Saginaw inner tripod joints used on the L.H. platform vehicles use no internal retention in the tripod housing to keep the spider assembly in the housing. Therefore do not pull on the interconnecting shaft to disengage tripod housing from transmission stub shaft. Removal in this manner will cause dam­age to inboard boots.
(1) Remove the driveshaft requiring boot replace­ment from the vehicle. See Servicing Driveshaft in this section of the service manual for the required drive shaft removal procedure.
Remove large boot clamp which retains inner
(2) tripod joint sealing boot to tripod joint housing (Fig.
2) and discard. Then remove small clamp which re­tains inner tripod joint sealing boot to interconnect-
Page 66
SUSPENSION AND DRIVESHAFTS 2 - 47
Fig. 1 L.H. Platform Driveshaft Components
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2 - 48 SUSPENSION AND DRIVESHAFTS
ing shaft (Fig. 2) and discard. Remove the sealing boot from the tripod housing and slide it down the interconnecting shaft.
Fig. 2 Inner Tripod Joint Sealing Boot Clamps
CAUTION: When removing the spider joint from the tripod joint housing. Hold the rollers in place on the spider trunions to prevent the rollers and needle bearings from falling away.
Fig. 4 Spider Assembly Retaining Snap Ring
Removal
(6) Thoroughly clean and inspect spider assembly, tripod joint housing and interconnecting shaft for any signs of excessive wear. If any parts show signs of
excessive wear, the driveshaft assembly will re­quire replacement. Component parts of the L.H. platform driveshaft assemblies are not service­able.
(3) Slide the interconnecting shaft and spider as-
sembly out of the tripod joint housing (Fig. 3).
Fig. 3 Spider Assembly Joint Removal From
Housing
(4) Remove snap ring which retains spider assem­bly to interconnecting shaft (Fig. 4). Then remove the spider assembly from interconnecting shaft. If spider assembly will not come off interconnecting shaft by hand, it can be removed by tapping the end of the spider body with a brass drift. Do not hit the outer
tripod bearings in an attempt to remove spider assembly from interconnecting shaft.
(5) Slide failed sealing boot off the interconnecting shaft.
INSTALL
The inner tripod joint sealing boots used on the L.H. platform vehicles are made from 2 dif­ferent types of material. High temperature ap­plications use silicone rubber where as stan­dard temperature applications use hytrel plastic. The silicone sealing boots are soft and pliable. The Hytrel sealing boots are stiff and rigid. The replacement sealing boot MUST BE the same type of material as the sealing boot which was removed.
(1) Slide inner tripod joint seal boot retaining clamp, onto interconnecting shaft. Then slide replace­ment inner tripod joint sealing boot onto the intercon­necting shaft. Inner tripod joint seal boot MUST
be positioned on interconnecting shaft, so only the thinnest (sight) groove on interconnecting shaft is visible (Fig. 5).
(2) Install the spider assembly onto the intercon­necting shaft. Spider assembly must be installed on interconnecting shaft far enough to fully install the retaining snap ring. If spider assembly will not fully install on interconnecting shaft by hand, it can be installed by tapping the spider body with a brass drift. Do not hit the outer tripod bearings in an
attempt to install spider assembly on intercon­necting shaft.
(3) Install the spider assembly to interconnecting shaft retaining snap ring into groove on end of inter­connecting shaft (Fig. 6). Be sure the snap ring is fully seated into groove on interconnecting shaft.
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SUSPENSION AND DRIVESHAFTS 2 - 49
Fig. 5 Seal Boot Correctly Positioned On
Interconnecting Shaft
Fig. 6 Spider Assembly Retaining Snap Ring
Installation
(4) Distribute 1/2 the amount of grease provided in the seal boot service package (DO NOT USE ANY OTHER TYPE OF GREASE) into tripod housing. Put the remaining amount into the sealing boot.
(5) Slide the spider assembly and the interconnect­ing shaft into the tripod joint housing (Fig. 7).
(6) Install inner tripod joint seal boot to intercon­necting shaft clamp evenly on sealing boot.
(7) Clamp sealing boot onto interconnecting shaft using Crimper, Special Tool C-4975 and the following procedure. Place crimping tool C-4975 over bridge of clamp (Fig. 8). Tighten nut on crimping tool C-4975 until jaws on tool are closed completely together, face to face (Fig. 9).
Fig. 7 Spider Assembly Installed In Housing
Fig. 8 Crimping Tool Installed On Sealing Boot
Clamp
CAUTION: Seal must not be dimpled, stretched or out of shape in any way. If seal is NOT shaped correctly, equalize pressure in seal and shape it by hand.
Fig. 9 Sealing Boot Retaining Clamp Installed
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2 - 50 SUSPENSION AND DRIVESHAFTS
(8) Position the sealing boot into the tripod housing retaining groove (Fig. 10). Install seal boot retaining clamp evenly on sealing boot.
Fig. 10 Boot and Clamp Positioning
(9) Before crimping sealing boot to tripod housing clamp, the inner tripod joint must be at the cor- rect stroke positioned (Fig. 11). This procedure is required to ensure that the proper amount of air is inside sealing boot before clamp is crimped. Failure
to perform this operation will result in inner tripod sealing boot failure.
Fig. 11 Proper Inner Tripod Joint Stroke Position
OUTER C/V JOINT SEALING BOOT SERVICE
REMOVE
To remove outer C/V joint sealing boot from a drive­shaft for replacement, the drive shaft assembly must be removed from the vehicle. See Servicing Driveshaft in this section of the service manual for the required drive shaft removal and replacement procedure.
(1) Remove driveshaft assembly requiring boot re­placement from vehicle. See Servicing Driveshaft in this section of the service manual for the required driveshaft removal procedure.
(2) Remove large boot clamp, retaining C/V joint sealing boot, to C/V joint housing (Fig. 1) and discard. Remove small clamp which retains outer C/V joint sealing boot to interconnecting shaft and discard. Re­move sealing boot from outer C/V joint housing and slide it down interconnecting shaft.
(10) Clamp sealing boot onto tripod housing using Crimper, Special Tool C-4975 and the following proce­dure. Place crimping tool C-4975 over bridge of clamp (Fig. 8). Tighten nut on crimping tool C-4975 until jaws on tool are closed completely together, face to face (Fig. 9).
(11) Install the driveshaft requiring boot replace­ment back into the vehicle. See Servicing Driveshaft in this section of the service manual for the required drive shaft installation procedure.
Fig. 1 Outer C/V Joint Seal Boot Clamps
(3) Wipe away grease to expose outer C/V joint to interconnecting shaft retaining ring (Fig. 2). Spread ears apart on C/V joint assembly to interconnecting shaft retaining snap ring (Fig. 2). Slide outer C/V joint assembly off end of interconnecting shaft.
(4) Slide failed sealing boot off interconnecting shaft.
(5) Thoroughly clean and inspect outer C/V joint assembly and interconnecting joint for any signs of excessive wear. If any parts show signs of exces-
sive wear, the driveshaft assembly will require replacement. Component parts of the L.H. plat­form driveshaft assemblies are not serviceable.
INSTALL
(1) Slide a new seal boot to interconnecting shaft retaining clamp, onto the interconnecting shaft. Then slide the replacement outer C/V joint assembly seal­ing boot onto the interconnecting shaft.
(2) Install outer C/V joint assembly onto intercon­necting shaft. Joint is installed on interconnecting
Page 70
SUSPENSION AND DRIVESHAFTS 2 - 51
Fig. 2 Outer C/V Joint Removal From
Interconnecting Shaft
shaft, by pushing interconnecting shaft into outer C/V joint, until retaining snap ring is seated in groove on interconnecting shaft (Fig. 3). Be sure the snap ring is fully seated into groove on interconnect­ing shaft.
Fig. 3 Outer C/V Joint Installed On Interconnecting
Shaft
(3) Distribute 1/2 the amount of grease provided in seal boot service package (DO NOT USE ANY OTHER TYPE OF GREASE) into outer C/V joint assembly housing. Put the remaining amount into the sealing boot.
(4) Install outer C/V joint seal boot retaining clamp, onto interconnecting shaft. Then install re­placement outer C/V joint sealing boot onto intercon­necting shaft. Outer C/V joint seal boot MUST be
positioned on interconnecting shaft, so only the thinnest (sight) groove on interconnecting shaft is visible (Fig. 4).
(5) Clamp sealing boot on interconnecting shaft us­ing Crimper, Special Tool C-4975 and the following procedure. Place crimping tool C-4975 over bridge of
Fig. 4 Seal Boot Correctly Positioned On
Interconnecting Shaft
clamp (Fig. 5). Then tighten nut on crimping tool C-4975 until jaws on tool are closed completely to­gether, face to face (Fig. 6).
Fig. 5 Crimping Tool Installed On Sealing Boot
Clamp
Fig. 6 Sealing Boot Retaining Clamp Installed
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2 - 52 SUSPENSION AND DRIVESHAFTS
CAUTION: Seal must not be dimpled, stretched or out of shape in any way. If seal is NOT shaped correctly, equalize pressure in seal and shape it by hand.
(6) Position outer C/V joint seal boot, into boot re­taining groove on outer C/V joint housing (Fig. 7). Then install seal boot to outer C/V joint retaining clamp evenly on sealing boot.
Fig. 8 Crimping Tool Installed On Sealing Boot
Clamp
Fig. 7 Boot and Clamp Positioning
(7) Clamp sealing boot onto outer C/V joint housing using Crimper, Special Tool C-4975 and the following procedure. Place crimping tool C-4975 over bridge of clamp (Fig. 8). Tighten nut on crimping tool C-4975 until jaws on tool are closed completely together, face to face (Fig. 9).
(8) Install the driveshaft requiring boot replace­ment back on the vehicle. See Servicing Driveshaft in this section of the service manual for the required drive shaft installation procedure.
Fig. 9 Sealing Boot Retaining Clamp Installed
Page 72
SUSPENSION AND DRIVESHAFTS 2 - 53
REAR SUSPENSION
INDEX
page page
General Information ....................... 53
Rear Crossmember ....................... 66
Rear Spindle ............................ 61
Rear Stabilizer Bar ........................ 68
GENERAL INFORMATION
The rear suspension used on the L.H. platform is a fully independent rear suspension. The suspension utilizes a MacPherson strut assembly at each rear wheel of the vehicle.
CAUTION: Only frame contact hoisting equipment can be used on L.H. platform vehicles. The L.H. platform vehicles have a fully independent rear sus­pension. The L.H. platform vehicles can not be hoisted using equipment designed to lift a vehicle by the rear axle. If this type of hoisting equipment is used damage to rear suspension components will occur.
A forged rear spindle bolts to each rear strut as­sembly. The movement of the rear spindle is con­trolled laterally using lateral links going from the front and rear of the spindle to the rear cross mem­ber. Fore and aft movement of the spindle is con­trolled by a trailing arm.
Rear Wheel Toe Setting Procedure ............ 55
Servicing Lateral Links ..................... 69
Servicing Rear Struts ...................... 55
Suspension Coil Springs ................... 61
The lateral links and trailing arm have rubber iso­lator bushings at each end. The lateral links are attached to the rear crossmember and spindle, using a common bolt and nut assembly at each end. The trailing arm bolts to the bottom of the spindle and to a bracket attached to the floor pan of the vehicle.
Lateral links, trailing arms and spindles are nor­mally replaced only when the part has been damaged or when the vehicle has been involved in an accident. If a suspension part has been damaged, be sure to check the underbody dimensions of the car. If the underbody dimensions are not correct, the frame of the vehicle must be straightened, before replacement suspension components are installed.
Note: If a rear suspension component becomes bent, damaged or fails, no attempt should be made to straighten or repair it. Always replace with a new component.
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2 - 54 SUSPENSION AND DRIVESHAFTS
Fig. 1 L.H. Platform Fully Independent Rear Suspension
Page 74
REAR WHEEL TOE SETTING PROCEDURE
Rear Wheel alignment adjustments can only be made for the Toe In setting on the L.H. plat­form vehicles.
Toe is measured in degrees or inches and is the
distance the front edges of the tires are closer (or farther apart) than the rear edges. See Front Wheel Drive Specifications for Toe settings.
REAR WHEEL TOE ADJUSTMENT
(1) Prepare vehicle as described in the Pre­Alignment procedure.
(2) Loosen lateral link, adjustment link jamnuts (Fig. 1). Rotate adjustment links as required to set rear wheel Toe to specifications. Do not exceed the
maximum length dimensions of the lateral links shown in (Fig. 2). Both dimensions must be checked to ensure they do not exceed maxi­mums allowed.
SUSPENSION AND DRIVESHAFTS 2 - 55
Fig. 2 Lateral Link Maximum Length Dimensions
(2) Remove the rear wheel and tire assembly from
the vehicle.
(3) If vehicle is equipped with rear disc brakes, remove the rear caliper assembly from the adapter. Refer to Rear Disk Brakes in Group 5 Brakes of this Service manual for required caliper removal proce­dure. After removing caliper assembly store caliper by hanging it from vehicle (Fig. 1). Do not let rear cali­per assembly hang from flexible brake hose. If vehicle is equipped with rear drum brakes, remove the brake flex hose bracket from the support plate and wheel cylinder (Fig. 2).
Fig. 1 Rear Wheel Toe Adjustment At Lateral Links
CAUTION: The maximum lengths of the adjustable lateral link at the locations shown in (Fig. 2) must not be exceeded. If these maximum lengths are exceeded, inadequate retention of adjustment link to the inner and outer link may result. Ensure that the adjust­ment sleeve jam nuts are torqued to the required specifications when the Toe setting procedure is completed.
(3) Tighten lateral link, adjustment link locknuts to
65 Nzm (48 ft.lbs.) torque.
When setting rear (Toe In( on vehicle.
SERVICING REAR STRUTS
REMOVAL
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
Fig. 1 Storing Rear Caliper Assembly
(4) If vehicle is equipped with rear disc brakes,
remove rear braking disc from hub.
(5) If vehicle is equipped with rear disc brakes. Remove the speed sensor cable routing tube on trail­ing arm and the routing bracket on the trailing arm bracket to spindle (Fig. 3). If spindle and trailing
arm assembly is lowered from strut with the
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2 - 56 SUSPENSION AND DRIVESHAFTS
Fig. 2 Brake Hose Bracket And Tube
speed sensor cable attached damage to speed sensor cable may occur.
taching link stud nut, at the stabilizer bar (Fig. 5). The attaching link does not have to be removed from strut assembly.
Fig. 5 Attachment Link To Stabilizer Bar Attaching
(8) Loosen and fully remove, the rear spindle to strut assembly pinch bolt (Fig. 6).
Fig. 3 Speed Sensor Routing Tube And Bracket
(6) Remove the bolt (Fig. 4) attaching the lateral
links to the rear spindle assembly.
Fig. 4 Lateral Links To Spindle Attaching Bolt
(7) Install a thin open end wrench, on hex of at­taching link stud to keep stud from spinning in link. Remove the rear strut assembly to stabilizer bar at-
Fig. 6 Spindle To Strut Assembly Pinch Bolt
CAUTION: When inserting center punch into rear spindle, use care so point of center punch does not puncture strut assembly.
(9) Insert a center punch into the hole on the spindle (Fig. 7). Center punch must be tapped into spindle until jammed into hole. This will spread spindle casting allowing it to be removed from strut assembly.
(10) Using a hammer, tap on top surface of spindle driving it down and off the end of the strut assembly (Fig. 8).
(11) Let the rear spindle and assembled compo­nents hang from trailing arm (Fig. 9) while strut assembly is out of the vehicle.
(12) Lower vehicle.
Page 76
Fig. 7 Center Punch Installed In Spindle
SUSPENSION AND DRIVESHAFTS 2 - 57
Fig. 8 Removing Spindle From Strut Assembly
NOTE: When removing rear strut assembly from vehicle, access for the 3 rear strut assem­bly to strut tower attaching nuts is through the trunk of the vehicle. See (Fig. 10) for access location of the strut assembly attaching nuts in trunk of vehicle.
(13) Remove the 3 rear strut assembly to rear strut tower mounting nuts (Fig. 10) and then remove strut assembly from vehicle.
INSPECTION
Inspect for evidence of fluid leakage from upper end of reservoir. (Actual leakage will be a stream of fluid running down and leaking off lower end). Slight seep­age is not unusual and will not effect performance.
INSTALLATION
(1) Position strut assembly back in vehicle with the 3 studs on strut mount assembly through holes in rear strut tower of vehicle. Install the 3 strut mount to body attaching nuts onto mount studs (Fig. 10).
Fig. 9 Spindle Assembly Removed From Strut
Fig. 10 Rear Strut Assembly To Strut Tower
Mounting Nuts
Using a crow foot and 3/8 in. torque wrench, torque the 3 strut mount to strut tower attaching nuts to 28 Nzm (20 ft. lbs).
(2) Install spindle onto bottom of the strut assem­bly. Push and or tap spindle assembly onto strut, until notch in spindle is tightly seated against locat­ing tap on strut assembly (Fig. 11). Then remove center punch from hole in spindle. Install spindle to strut assembly pinch bolt into spindle (Fig. 11). Torque spindle to strut assembly pinch bolt to 55 Nzm (40 ft. lbs.).
(3) Install the lateral links to spindle attaching bolt (Fig. 12). Torque the lateral links to spindle attaching bolt to 140 Nzm (105 ft. lbs.).
(4) Install stabilizer bar attaching link onto stabi­lizer bar (Fig. 13). Install stabilizer link to stabilizer
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2 - 58 SUSPENSION AND DRIVESHAFTS
(5) Mount rear speed sensor cable routing tube to rear trailing arm (Fig. 14). Then mount speed sensor cable routing clip (Fig. 14) to the trailing arm to rear spindle bracket.
Fig. 11 Spindle Mounted To Strut Assembly
Fig. 12 Lateral Links To Spindle Attaching Bolt
bar attaching nut (Fig. 13). Torque the stabilizer link to stabilizer bar attaching nut to 95 Nzm (70 ft. lbs.).
Fig. 14 Speed Sensor Routing Tube And Bracket
(6) If vehicle is equipped with rear disc brakes, install rear braking disc on hub. Carefully install rear brake caliper over braking disc and install on adapter. Tighten rear caliper assembly to adapter mounting bolts to 22 Nzm (192 in. lbs.). If required, refer to Rear Disc Brakes in Group 5 Brakes of this service manual for required rear brake caliper installation procedure.
(7) If vehicle is equipped with rear drum brakes install rear brake flex hose onto wheel cylinder and support plate (Fig. 15). First torque brake hose to wheel cylinder tube nut to 17 Nzm (145 in. lbs.). Then torque brake hose bracket to brake support plate bolt to8Nzm (75 in. lbs).
Fig. 13 Attachment Link To Stabilizer Bar Attaching
Fig. 15 Brake Hose Bracket And Tube Nut
(8) If vehicle has rear drum brakes, brake system will require bleeding. Refer to Bleeding Brake System in the Service Adjustments Section of Group 5 Brakes in this service manual.
(9) Install wheel and tire assembly on vehicle. Then torque all wheel mounting stud nuts in proper se­quence (Fig. 16) until all nuts are torqued to half
Page 78
specification. Then repeat tightening sequence to full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 16 Tightening Wheel Nuts
(10) Lower vehicle to the ground. (11) Check and reset rear wheel TOE to specifica-
tions if required.
SUSPENSION AND DRIVESHAFTS 2 - 59
STRUT DISASSEMBLY
The rear strut is not serviced and must be replaced as an assembly if found to be defective. The strut is available with 2 calibrations, be sure strut is replaced with an assembly of the same calibration.
The components of the strut assembly listed below are replaceable if found to be defective.
Coil spring (Coil springs come in a standard and high rate be sure spring is replaced with a spring of the correct rate.)
Dust shield
Mount assembly
Jounce Bumper
Lower Spring Isolator
Shaft Nut
(1) Remove strut assembly requiring service from the vehicle. Refer to Strut Assembly Removal in Ser­vicing Rear Struts, in this section of the service manual.
(2) Position strut assembly in a vise (Fig. 1). Using paint or equivalent, mark the strut unit, lower spring isolator, spring and upper strut mount for indexing of the parts at assembly.
(3) Position Spring Compressors, Special Tool C-4838 on the strut assembly spring (Fig. 1). Com­press coil spring until all load is removed from upper strut mount assembly.
(4) Install Strut Rod Socket, Special Tool, L-4558 on strut shaft nut (Fig. 2). Usea8mmallen wrench inserted into end of strut shaft to keep strut shaft from turning (Fig. 2). Remove strut shaft nut from shaft.
(5) Remove upper strut mount assembly from strut shaft (Fig. 3).
Fig. 1 Compressing Strut Assembly Coil Spring
Fig. 2 Removing Strut Shaft Nut
(6) Remove the coil spring and spring compressor
as an assembly from the strut (Fig. 4).
(7) Remove the plate, dust shield and jounce
bumper as an assembly from the strut unit (Fig. 5).
(8) Remove lower spring isolator from strut assem-
bly (Fig. 6).
Inspect all disassembled components for signs of abnormal wear or failure replacing any components as required. Inspect strut unit for signs of abnormal oil leakage and for loss of gas charge. To check for loss of gas charge in strut unit. Push strut shaft into
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2 - 60 SUSPENSION AND DRIVESHAFTS
Fig. 3 Upper Strut Mount Removal
Fig. 4 Coil Spring Remove And Replace
body of strut and release, strut shaft should return to its fully extended position. If strut shaft does not return to its fully extended position replace strut unit.
STRUT REASSEMBLY
(1) Install original or new, lower spring isolator on strut unit (Fig. 6). If installing original isolator align paint marks on isolator and strut unit.
(2) Install jounce bumper into dust shield (Fig. 7). Install plate on top of dust shield and into jounce bumper (Fig. 8).
(3) Install the dust shield, jounce bumper and top plate as an assembly onto the strut unit (Fig. 5).
(4) Lower the coil spring and compressor onto the strut unit (Fig. 4) Align the paint mark on the spring with the paint mark on the strut unit (Fig. 1).
Fig. 5 Plate, Dust Shield And Jounce Bumper
Remove And Replace
Fig. 6 Lower Spring Isolator
(5) Install the upper strut mount assembly onto the strut shaft, aligning paint marks (Fig. 3). Install the upper strut mount to strut shaft retaining nut on strut shaft.
(6) Using Strut Rod Socket, Special Tool, L-4558 and a 8 mm allen wrench to keep strut shaft from turning. Torque the strut shaft nut to 95 Nzm (70 ft. lbs.).
(7) Equally loosen the Spring Compressors, Special Tool C-4838 until spring is seated on upper strut mount and all tension is relieved from the spring compressors.
(8) Install the strut assembly back into the vehicle. Refer to Strut Assembly Removal in Servicing Rear Struts in this section of the service manual.
(9) Check and reset rear wheel TOE to specifica­tions if required.
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SUSPENSION AND DRIVESHAFTS 2 - 61
Fig. 7 Jounce Bumper Installed Into Dust Shield
Fig. 8 Plate Installation Into Jounce Bumper And
Dust Shield
SUSPENSION COIL SPRINGS
Springs are rated separately for each side of vehicle depending on optional equipment and type of service. During service procedures where both springs are removed, mark springs (Chalk, Tape, etc.) (Fig. 9) to ensure installation in original position. If the coils springs require replacement. Be sure that the
springs needing replacement, are replaced with springs meeting the correct load and spring rate for the vehicle.
During service procedures requiring the re­moval or installation of a coil spring with Spring Compressor, Special Tool C-4838. It is required that five coils be captured within the jaws of the tool (Fig. 9).
Fig. 9 Identifying Coil Springs
tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove the rear wheel and tire assembly from
the vehicle.
(3) If vehicle is equipped with rear disc brakes, remove the rear caliper assembly from the adapter. Refer to Rear Disk Brakes in Group 5 Brakes of this Service manual for required caliper removal proce­dure. After removing caliper assembly store caliper by hanging it from frame of vehicle (Fig. 1). Do not let weight of rear caliper assembly hang from flexible brake hose. If vehicle is equipped with rear drum brakes, remove the brake flex hose bracket from the support plate and wheel cylinder (Fig. 2).
REAR SPINDLE
REMOVE
(1) Raise vehicle on jackstands or centered on a
frame contact type hoist. See Hoisting in the Lubrica-
Fig. 1 Storing Rear Caliper Assembly
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2 - 62 SUSPENSION AND DRIVESHAFTS
Fig. 2 Brake Hose Bracket And Tube
(4) If vehicle is equipped with rear disc brakes, remove rear braking disc from hub. If vehicle is equipped with rear drum brakes, remove the brake drum from the hub.
(5) On all rear brake applications, remove rear hub and bearing assembly cotter pin and nut retainer. Then remove hub retaining nut and washer from spindle (Fig. 3). Then remove hub and bearing assem­bly from spindle.
Fig. 4 Brake Support Plate Mounting Bolts
Fig. 3 Rear Hub And Bearing Retaining Nut and
Washer Removal
(6) On vehicles equipped with rear drum brakes. Remove the 4 bolts attaching the rear brake support plate to the rear spindle (Fig. 4). Then remove rear brake support plate with parking brake cable at­tached, from rear spindle.
(7) If vehicle is equipped with Anti-Lock brakes. Remove speed sensor head from the rear disc brake adapter (Fig. 5).
(8) On vehicles equipped with rear disc brakes. Re­move the 4 bolts attaching the disc brake adapter to
Fig. 5 Speed Sensor Head Removal From Adapter
the rear spindle (Fig. 6). Then remove the adapter, disc shield, park brake shoes and park brake cable as an assembly from spindle.
Fig. 6 Disc Brake Adapter Mounting
Page 82
(9) If vehicle is equipped with Anti-Lock brakes. Remove the speed sensor cable routing tube on trail­ing arm and the routing bracket on the trailing arm bracket to spindle (Fig. 7). If trailing arm is low-
ered from strut with the speed sensor cable at­tached damage to speed sensor cable may occur.
Fig. 7 Speed Sensor Routing Tube And Bracket
(10) Remove bolt attaching trailing arm to trailing arm bracket on bottom of spindle (Fig. 8).
SUSPENSION AND DRIVESHAFTS 2 - 63
Fig. 9 Lateral Links To Spindle Attaching Bolt
Fig. 8 Trailing Arm To Spindle Bracket Bolt
(11) Remove the bolt (Fig. 9) attaching the lateral links to the rear spindle assembly.
(12) Loosen and fully remove, the rear spindle to strut assembly pinch bolt (Fig. 10).
CAUTION: When inserting center punch into rear spindle, use care so point of center punch does not puncture strut assembly.
(13) Insert a center punch into the hole on the spindle (Fig. 11). Center punch must be tapped into spindle until jammed into hole. This will spread spindle casting allowing it to be removed from strut assembly.
(14) Using a hammer, tap on top surface of spindle driving it down and off the end of the strut assembly (Fig. 12).
Fig. 10 Spindle To Strut Assembly Pinch Bolt
Fig. 11 Center Punch Installed In Spindle
INSTALLATION
(1) Install spindle onto the bottom of the strut as­sembly (Fig 13). Push and or tap spindle assembly onto strut, until notch in spindle is tightly seated against locating tap on strut assembly (Fig. 13). Then
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2 - 64 SUSPENSION AND DRIVESHAFTS
Fig. 12 Removing Spindle From Strut Assembly
remove center punch from hole in spindle. Install spindle to strut assembly pinch bolt into spindle (Fig.
13). Torque spindle to strut assembly pinch bolt to 55 Nzm (40 ft. lbs.).
Fig. 13 Spindle Mounted To Strut Assembly
(2) Install the lateral links to spindle attaching bolt (Fig. 14) Torque the lateral links to spindle attaching bolt to 140 Nzm (105 ft. lbs.).
(3) Install bolt attaching trailing arm to trailing arm bracket on bottom of spindle (Fig. 15). Torque trailing arm to trailing arm bracket attaching bolt to 100 Nzm (74 ft. lbs.).
(4) If vehicle is equipped with Anti-Lock Brakes. Mount rear speed sensor cable routing tube to the rear trailing arm and speed sensor cable routing bracket to trailing arm bracket at rear spindle (Fig.
16).
(5) On vehicles equipped with rear drum brakes. Install the rear brake support plate onto the spindle (Fig. 17). Install the 4 bolts attaching the rear brake support plate to the rear spindle (Fig. 17). Torque the brake support plate to spindle mounting bolts to 115 Nzm (85 ft. lbs.).
Fig. 14 Lateral Links To Spindle Attaching Bolt
Fig. 15 Trailing Arm To Spindle Bracket Bolt
Fig. 16 Speed Sensor Routing Tube And Bracket
(6) On vehicles equipped with rear disc brakes. In-
stall the disc brake adapter back on the spindle (Fig.
18) Install the 4 bolts attaching the disc brake adapter to the rear spindle (Fig. 18). Torque the disc brake adapter to spindle mounting bolts to 115 Nzm (85 ft. lbs.).
(7) If vehicle is equipped with Anti-Lock brakes.
Install the speed sensor head into the rear disc brake
Page 84
SUSPENSION AND DRIVESHAFTS 2 - 65
(8) Install the rear hub and bearing assembly on the rear spindle. Install hub and bearing assembly retaining washer and nut on spindle (Fig. 20). Torque hub and bearing retaining nut to 168 Nzm (124 ft. lbs).
Fig. 17 Brake Support Plate Mounting Bolts
Fig. 18 Disc Brake Adapter Mounting
adapter (Fig. 19). Torque speed sensor head to adapter attaching bolt to 7 Nzm (60 in. lbs.).
Fig. 20 Rear Hub And Bearing Retaining Nut and
Washer Removal
(9) If vehicle is equipped with rear disc brakes, install rear braking disc on hub. If vehicle is equipped with rear drum brakes, install the brake drum on hub.
(10) If vehicle is equipped with rear disc brakes, install rear braking disc on hub. Carefully install rear brake caliper over braking disc and install on adapter. Tighten the caliper assembly to adapter mounting bolts to 22 Nzm (192 in. lbs.). Refer to Rear Disc Brakes in Group 5 Brakes in this service manual for required caliper installation procedure.
(11) If vehicle is equipped with rear drum brakes install rear brake flex hose onto wheel cylinder and support plate (Fig. 21). Torque the brake hose to wheel cylinder tube nut to 17 Nzm (145 in. lbs.). Torque the brake hose bracket to support plate bolt to 8Nzm (75 in. lbs).
(12) If vehicle has rear drum brakes, brake system will require bleeding. Refer to Bleeding Brake System in the Service Adjustments Section of Group 5 Brakes in this service manual.
(13) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 22) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
(14) Lower vehicle to the ground.
(15) Check and reset rear wheel TOE to specifica­tions if required.
Fig. 19 Speed Sensor Head Installed In Adapter
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2 - 66 SUSPENSION AND DRIVESHAFTS
REAR CROSSMEMBER
The L.H. platform vehicles are available with two different rear crossmembers depending on the sus­pension package the vehicle was built with. The crossmembers visually look the same between the standard and performance suspension packages, but the mounting location for the lateral links is differ­ent. The performance suspension crossmember is identified by a identification hole in the crossmem­ber (Fig. 1). The performance crossmember identifi­cation hole is located on left side of crossmember on the rear vertical wall. If crossmember is replaced
be sure the correct crossmember is installed or handling of the vehicle will be adversely af­fected.
Fig. 21 Brake Hose Bracket And Tube Nut
Fig. 22 Tightening Wheel Nuts
REMOVE
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove both rear wheel and tire assemblies from the vehicle.
(3) Position a transmission jack under the fuel tank just forward of the crossmember to help support fuel tank when crossmember is removed.
(4) Remove the nut and bolt on each side of vehicle attaching the lateral links to the spindle (Fig. 2).
(5) Remove the 4 bolts attaching rear crossmember to frame rails (Fig. 3)
(6) Lower the crossmember and lateral links as an assembly out of the vehicle.
Fig. 1 Rear Suspension Crossmember
Page 86
Fig. 2 Lateral Link Attachment To Spindle
SUSPENSION AND DRIVESHAFTS 2 - 67
(3) Align lateral links with spindles and install the lateral link to spindle attaching bolts (Fig. 2). Torque the lateral link to spindle attaching bolts to 140 Nzm (105 ft. lbs.).
(4) Remove transmission jack supporting fuel tank.
(5) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 4) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 3 Crossmember To Frame Rail Attaching Bolts
(7) Transfer lateral links to the replacement cross­member before installing crossmember back in ve­hicle. Adjustable lateral link to be positioned to the rear of vehicle on crossmember. Torque the lateral links to crossmember attaching bolts to 140 Nzm (105 ft. lbs.). Install lateral link to crossmem-
ber bolts so head of bolt will be to front of vehicle when crossmember is installed.
INSTALL
(1) Install the crossmember and lateral links back into vehicle as an assembly.
(2) Position crossmember on frame rails and install the 4 crossmember to frame rail attaching bolts (Fig.
3). Torque the crossmember to frame rail attaching bolts to 95 Nzm (70 ft. lbs.).
Fig. 4 Tightening Wheel Nuts
(6) Lower vehicle to the ground. (7) Check and reset rear wheel TOE to specifica-
tions if required.
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2 - 68 SUSPENSION AND DRIVESHAFTS
REAR STABILIZER BAR SERVICE
REMOVE
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove both rear wheel and tire assemblies from the vehicle.
(3) Position a transmission jack under the fuel tank just forward of the crossmember to help support fuel tank when crossmember is removed.
(4) Remove the 4 crossmember to frame rail attach­ing bolts (Fig. 1).
Fig. 2 Stabilizer Bar To Link Attaching
bar attaching nut (Fig. 2). Torque the stabilizer link to stabilizer bar attaching nut to 95 Nzm (70 ft. lbs.).
(3) Install fuel tank back in vehicle. Refer to Group 14 Fuel, in this service manual for the required fuel tank installation procedure.
Fig. 1 Crossmember To Frame Rail Attaching Bolts
(5) Remove fuel tank. Refer to Group 14 Fuel, in this service manual for the required fuel tank re­moval procedure.
(6) Remove the stabilizer bar to link assembly at­taching nuts (Fig. 2)
(7) Remove stabilizer bar and isolator bushings as an assembly from the vehicle.
STABILIZER BAR AND BUSHING INSPECTION
Inspect for broken or distorted retainers and bush­ings. If bushing replacement is required, bushing can be removed by opening slit in bushing and removing bushing from around stabilizer bar.
CAUTION: The sway bar bracket bolts must be re­placed after loosening or removing them. Only use original equipment bolts as replacements.
(4) Position crossmember on frame rails and install
the 4 crossmember to frame rail attaching bolts (Fig.
1). Torque the crossmember to frame rail attaching bolts to 95 Nzm (70 ft. lbs.).
(5) Remove transmission jack supporting fuel tank.
(6) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 3) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
INSTALL
(1) Install the stabilizer bar and isolator bushings back into the vehicle as an assembly. Position stabi­lizer bar so it is centered in the vehicle so it does not contact other suspension components or vehicle body.
(2) Install the stabilizer bar attaching link onto stabilizer bar. Install the stabilizer link to stabilizer
Fig. 3 Tightening Wheel Nuts
(7) Lower vehicle to the ground. (8) Check and reset rear wheel TOE to specifica-
tions if required.
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SUSPENSION AND DRIVESHAFTS 2 - 69
Fig. 1 Rear Suspension Lateral Links
SERVICING LATERAL LINKS
The lateral links are only serviced as complete as­semblies. The isolator bushings used in the lateral links are not serviced as separate components. The left and right lateral links are serviced using different procedures. See procedures below for the side of the vehicle requiring service to the lateral links.
LEFT LATERAL LINKS
REMOVE
Raise vehicle on jackstands or centered on a
(1) frame contact type hoist. See Hoisting in the Lubri­cation and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove left rear wheel and tire assembly from
the vehicle.
(3) Remove the nut and bolt attaching left lateral
links to the spindle (Fig. 2).
(4) Remove the nut and bolt attaching the left lat­eral links to the rear crossmember (Fig. 3) Remove lateral links from vehicle.
Fig. 2 Lateral Link Attachment To Spindle
Fig. 3 Left Lateral Links To Crossmember Bolt
INSTALL
(1) Replacement lateral links are installed on the crossmember in the following order.
Solid lateral link is installed on crossmember to­ward the front of the vehicle.
The adjustable lateral link is installed on cross­member toward rear of vehicle, with the adjustable link positioned toward the spindle (Fig. 1).
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2 - 70 SUSPENSION AND DRIVESHAFTS
(2) Install the lateral link attaching bolt at the
spindle and crossmember. Note: Both lateral link
attaching bolts must be install, so head of bolt is facing front of vehicle (Fig. 2 and 3).
(3) Torque both lateral link attaching bolts to 140
Nzm (105 ft. lbs.).
(4) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 4) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 5 Lateral Link Attachment To Spindle
Fig. 4 Tightening Wheel Nuts
(5) Lower vehicle to the ground.
(6) Check and reset rear wheel TOE to specifica­tions if required.
RIGHT LATERAL LINKS
To allow for removal of right rear lateral links to rear crossmember attaching bolt. The rear crossmem­ber will have to be lowered so attaching bolt will clear fuel tank for removal and installation.
REMOVE
(1) Raise vehicle on jackstands or centered on a frame contact type hoist. See Hoisting in the Lubrica­tion and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
(2) Remove right rear wheel and tire assembly from the vehicle.
(3) Remove the nut and bolt attaching right lateral links to the spindle (Fig. 5).
(4) Position a transmission jack under the fuel tank just forward of the crossmember to help support fuel tank when crossmember is lowered.
(5) Remove the 4 crossmember to frame rail attach­ing bolts (Fig. 6).
(6) Lower rear crossmember far enough so right lateral links to crossmember attaching bolt will clear fuel tank.
Fig. 6 Crossmember To Frame Rail Attaching Bolts
(7) Remove the nut and bolt attaching the right lateral links to the rear crossmember (Fig. 7) Remove lateral links from vehicle.
INSTALL
(1) Replacement lateral links are installed on the crossmember in the following order.
Solid lateral link is installed on crossmember to­ward the front of the vehicle.
The adjustable lateral link is installed on cross­member toward rear of vehicle, with the adjustable link positioned toward the spindle (Fig. 1).
(2) Install the right lateral links attaching bolt at the crossmember. Note: Right lateral link attach-
ing bolts MUST be install, so head of bolt is facing front of vehicle (Fig. 5 and 7).
Page 90
Fig. 7 Right Lateral Links To Crossmember Bolt
(3) Position crossmember on frame rails and install
the 4 crossmember to frame rail attaching bolts (Fig.
6). Torque the crossmember to frame rail attaching bolts to 95 Nzm (70 ft. lbs.).
(4) Torque the lateral links to crossmember attach-
ing bolt to 140 Nzm (105 ft. lbs.).
(5) Align right lateral links with spindle and install the lateral link to spindle attaching bolt (Fig. 5). Torque the lateral link to spindle attaching bolt to 140 Nzm (105 ft. lbs.).
SUSPENSION AND DRIVESHAFTS 2 - 71
(6) Install wheel and tire assembly on vehicle. Tighten the wheel mounting stud nuts in proper se­quence (Fig. 8) until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Fig. 8 Tightening Wheel Nuts
(7) Lower vehicle to the ground.
(8) Check and reset rear wheel TOE to specifica­tions if required.
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2 - 72 SUSPENSION AND DRIVESHAFTS
ALIGNMENT SPECIFICATIONS AT CURB HEIGHT
1994 New Yorker, LHS, Concorde, Intrepid and Vision Publication No. 81-270-4140 TSB 02-13-94 September 23, 1994
SPECIFICATIONS
FRONT SUSPENSION TORQUE SPECIFICATIONS
REAR SUSPENSION TORQUE SPECIFICATIONS
Page 92
BRAKES 5 - 1
BRAKES
CONTENTS
page page
ANTI-LOCK BRAKE SYSTEM—TEVES MARK IV
SYSTEM ............................. 75
BRAKE DISC (ROTOR) ................... 47
BRAKE SUPPORT ASSEMBLY ............. 22
FRONT DISC BRAKES .................... 28
GENERAL INFORMATION .................. 1
HYDRAULIC SYSTEM CONTROL VALVES .... 24
KELSEY HAYES DOUBLE PIN CALIPER
ASSEMBLY ........................... 31
GENERAL INFORMATION
Throughout this group, references may be made to a particular L.H. platform vehicle by letter or number designation. A chart showing the break down of these designations is included in the Introduction Section at the front of this service manual.
The L.H. platform vehicles are available with 4 different types of brake systems. The standard brake system consists of front disc brakes and rear drum brakes which are not available with Anti-Lock. The second optional brake system is 4 wheel disc brakes without Anti-Lock. The third optional brake system is Anti-Lock brakes, which is only available with front and rear disc brakes. The fourth optional brake sys­tem is 4 wheel disc brakes with traction control. The traction control system is dependent on the Anti-Lock system and is not available without Anti-Lock.
Standard brake equipment consists of:
Double pin floating caliper front disc brakes.
Rear automatic adjusting drum brakes.
Proportioning valve on non Anti-Lock brakes.
Master cylinder.
Vacuum power booster.
Double pin floating caliper rear disc brakes are
available on some models and standard with Anti­Lock.
The Anti-Lock braking system, uses the standard power brake system caliper assemblies, braking discs, pedal assembly, brake lines and hoses. The unique parts of the Anti-Lock braking system con­sists of the following components. Unique propor­tioning valves, wheel speed sensors, tone wheels, electronic control unit, hydraulic control unit and the conventional master cylinder and power booster.
MASTER CYLINDER ..................... 69
PARKING BRAKES ...................... 51
POWER BRAKES ........................ 72
REAR DISC BRAKES ..................... 38
REAR WHEEL DRUM BRAKES ............. 15
SERVICE ADJUSTMENTS .................. 4
WHEEL BEARINGS ...................... 74
WHEEL CYLINDERS ..................... 20
These components will be described in detail in the Anti-Lock brake section in this group of the service manual.
The front disc brake shoes have non-asbestos semi-
metallic linings.
The hydraulic brake system (Fig. 1 2 and 3) is diagonally split on both the Non-ABS and ABS brak­ing system. With the left front and right rear brakes on one hydraulic system and the right front and left rear on the other.
Fig. 1 Diagonally Split Braking System
(Typical Non-ABS System)
All available brake systems on the L.H. platform vehicles, except rear drum brakes use the same type of brake line fittings and tubing flares. The brake line and fittings used is double wall tubing with ISO
Page 93
5 - 2 BRAKES
Fig. 2 Proper Tube Nut Thread Size And Tube Routing (Non-ABS Equipped)
style tubing flares and fittings at all tubing joint locations. See (Figs. 2 and 3) for specific joint loca­tions and tube fitting size.
Vehicles equipped with rear drum brakes. Use con­ventional double inverted style flares at the brake flex hose to wheel cylinder connections.
Avoid scuffing the brake tubes when servicing. Scuffing the brake tubes will scrape off the anti­corrosion coating on the brake tubes.
CAUTION: At no time when servicing a vehicle, can a sheet metal screw, bolt or other metal fastener be installed in the shock tower to take the place of an original plastic clip. Also, NO holes can be drilled into the front shock tower in the area shown in (Fig.
4), for the installation of any metal fasteners into the shock tower.
Because of the minimum clearance in this area (Fig.4) installation of metal fasteners could damage the coil spring coating and lead to a corrosion fail­ure of the spring. If a plastic clip is missing, or is
lost or broken during servicing a vehicle, replace only with the equivalent part listed in the Mopar parts catalog.
The L.H. platform front disc brakes, use a double pin, single piston floating caliper design supplied by Kelsey-Hayes. The front disc brake caliper assembly mounts directly to rails on the steering knuckle and is secured to the steering knuckle using 2 bolts.
CAUTION: Caliper pistons, boots and seals for the different caliper assemblies used on the front and rear disc brake assemblies are not interchangeable. Misusage could result in a complete brake system failure. Be sure that the parts are replaced with the correct replacement parts, refer to the parts book for the type and model year of the vehicle being worked on.
The master cylinder is anodized, lightweight alumi­num, with a bore size of 23.8mm (15/16 in.).
Page 94
BRAKES 5 - 3
Fig. 3 Proper Nut Thread Size And Tube Routing (ABS Equipped)
Fig. 4 Shock Tower To Spring Minimum Clearance
Area
Page 95
5 - 4 BRAKES
SERVICE ADJUSTMENTS
INDEX
page page
Adjusting Rear Service Brakes ................4
Bleeding Brake System ..................... 5
Brake Hose and Tubing ..................... 7
Master Cylinder Fluid Level ..................4
MASTER CYLINDER FLUID LEVEL
NON-ABS AND ABS BRAKES
Check master cylinder reservoir brake fluid level a
minimum of twice a year.
Master cylinder brake fluid reservoirs used on all L.H. platform vehicles include a brake fluid level sensor. The brake fluid level sensor location is in the body of the brake fluid reservoir (Fig. 1). In the event of low brake fluid level in the brake fluid reservoir, the RED brake warning light in the instrument panel will turn on.
Master cylinder assembly, brake fluid reservoirs on both standard and Anti-Lock brake systems. Are marked with a MAX fill line indicating the brake fluid reservoirs proper fluid level (Fig. 1).
When filling brake fluid reservoir, use only Mopart brake fluid or an equivalent stored in a tightly sealed container. Brake fluid must con­form to DOT 3, specifications.
If necessary, add brake fluid to brake fluid reser­voir, bringing brake fluid level to the MAX fill line shown on fluid reservoir (Fig. 1).
DO NOT use brake fluid with a lower boiling point then DOT 3, as brake failure could result during prolonged hard braking.
DO NOT use petroleum-based fluid because seal damage in the brake system will result.
Road Wheel Stud Nut Tightening ..............6
Stop Lamp Switch Adjustment ................ 9
Testing Application Adjuster Operation .......... 5
Testing for Brake Fluid Contamination ........... 6
Fig. 1 Master Cylinder Fluid Level
(ABS And Non-ABS)
ADJUSTING REAR SERVICE BRAKES
Normally, self adjusting drum brakes will not require manual brake shoe adjustment. Al­though in the event of a brake reline it is advis­able to make the initial adjustment manually to speed up the adjusting time.
(1) Raise the vehicle so all wheels are free to turn. See Hoisting Recommendations in the Lubrication And Maintenance Section, at the front of this service manual.
(2) Remove rear brake adjusting hole rubber plug (Fig. 1), from the rear brake shoe support plate.
(3) Be sure parking brake lever is fully re-
leased.
(4) Insert a medium blade screwdriver (Fig. 2) or equivalent through the adjusting hole in support plate and against star wheel of adjusting screw. Move
Fig. 1 Brake Adjusting Hole Plug
handle of tool downward until a slight drag is felt when the road wheel is rotated.
(5) Insert a thin screwdriver or piece of welding rod into brake adjusting hole (Fig. 2). Push adjusting lever out of engagement with star wheel. Care
should be taken so as not to bend adjusting lever or distort lever spring. While holding adjust-
ing lever out of engagement with star wheel, back off star wheel to ensure a free wheel with no brake shoe drag.
Page 96
Fig. 2 Rear Brake Shoe Adjustment
(6) Repeat above adjustment at the other rear wheel. Install adjusting hole rubber plugs (Fig. 1) in rear brake supports.
TESTING APPLICATION ADJUSTER OPERATION
Place the vehicle on a hoist with a helper in the driver’s seat to apply the brakes. Remove the access plug from the rear adjustment slot in each brake support plate (Fig. 1) to provide visual access to brake adjuster star wheel. Then, to eliminate the possibility of maximum adjustment, where the adjuster does not operate because the closest possible adjustment has been reached. Back the star wheel off approximately 30 notches. It will be necessary to hold the adjuster lever away from the star wheel to permit this adjust­ment.
Spin the wheel and brake drum in the forward direction, and with a greater than normal force apply the brakes suddenly. This sudden application of force will cause the leading brake shoe to leave the anchor. The wrap up effect will move the leading shoe, and the spring will pull the adjuster lever down. Upon application of the brake pedal, the lever should move down, turning the star wheel. Thus, a definite rota­tion of the adjuster star wheel can be observed if the automatic adjuster is working properly. If one or more adjusters do not function properly, the respective drum must be removed for adjuster servicing.
BRAKES 5 - 5
PRESSURE BLEEDING
Before removing the master cylinder cover, wipe it clean to prevent dirt and other foreign matter from dropping into the master cylinder.
CAUTION: Use bleeder tank Special Tool C-3496-B or equivalent, with Snap-On adapter BB400-9A or equivalent (Fig. 1 and 2), to pressurize the brake hydraulic system for bleeding.
Fig. 1 Pressure Bleeding Adapter Mounted On Fluid
Reservoir
BLEEDING BRAKE SYSTEM
CAUTION: For bleeding the L.H. platform Anti-Lock brakes hydraulic system, see the Anti-Lock Brake system service procedures in this group of the ser­vice manual. It describes in detail the required pro­cedure which needs to be followed when bleeding the Anti-Lock brake system.
Fig. 2 Pressure Bleeding Vehicle Brake System
Follow pressure bleeder manufacturer’s instruc­tions, for use of pressure bleeding equipment.
When bleeding the brake system. Some air may be trapped in the brake lines or valves far upstream. As much as ten feet from the bleeder screw (Fig. 3). Therefore, it is essential to have a fast flow of a large
Page 97
5 - 6 BRAKES
volume of brake fluid when bleeding the brakes. This will ensure all the air is bled from the brakes hydrau­lic system.
Fig. 3 Trapped Air in Brake Line
(1) Remove rubber dust caps from all 4 bleeder
screws.
(2) Attach a clear hose to the bleeder screw at one wheel and feed the hose into a clear jar containing fresh brake fluid (Fig. 4).
Enough fluid has not passed through the system to expel all the trapped air. Be sure to monitor the fluid level in the pressure bleeder. It must stay at the proper level so air will not be allowed to re-enter the brake system through the master cylinder.
(6) Replace all 4 bleeder screw rubber dust caps.
BLEEDING WITHOUT A PRESSURE BLEEDER
If a pressure bleeder is not available. A good brake fluid flow can be obtained by manual bleeding of the brake hydraulic system, following these steps.
(1) Remove rubber duct caps from all 4 bleeder screws.
(2) Attach a clear hose to the bleeder screw at one wheel and feed the hose into a clear jar containing fresh brake fluid (Fig. 4).
(3) Pump the brake pedal three or four times and hold it down before the bleeder screw is opened.
(4) Then open the bleeder screw at least 1 full turn. When the bleeder screw opens the brake pedal will drop all the way to the floor.
(5) Release the brake pedal only after the bleeder screw is closed.
(6) Repeat steps 1 through 3, four or five times at each bleeder screw. This should pass a sufficient amount of fluid to expel all the trapped air from the brakes hydraulic system. Be sure to monitor brake fluid level in master cylinder fluid reservoir, to ensure it stays at a proper level. This will ensure air does not re-enter brake hydraulic system through master cyl­inder.
(7) Only after a short stroke and solid brake pedal feel is obtained. Test drive vehicle to ensure brakes are operating correctly and brake pedal is solid.
(8) Replace all 4 bleeder screw dust caps.
Fig. 4 Proper Method for Purging Air From Brake
System (Typical)
CAUTION: Just cracking the bleeder screw often restricts fluid flow, and a slow, weak fluid discharge will NOT get all the air out.
(3) Open bleeder screw (Fig. 4) on caliper assembly or wheel cylinder, at least one full turn or more to obtain an adequate flow of brake fluid.
(4) After 4 to 8 ounces of brake fluid has been bled through an individual wheel’s brake hydraulic sys­tem. And an air-free flow (no bubbles) is maintained in the clear plastic hose and jar, this will indicate a good bleed of this individual hydraulic circuit.
(5) Repeat the procedure at all the other remaining bleeder screws. Then check the pedal for travel. If pedal travel is excessive or has not been improved.
TESTING FOR BRAKE FLUID CONTAMINATION
Indications of fluid contamination are swollen or
deteriorated rubber parts.
Swollen rubber parts indicate the presence of a
petroleum based fluid mixed in with the brake fluid.
To test for contamination, put small amount of drained brake fluid in clear glass jar. If fluid sepa­rates into layers, there is petroleum based fluid con­tamination of the brake fluid.
If contaminated, drain and thoroughly flush system. Replace master cylinder, proportioning valve, caliper seals, wheel cylinder seals and all hoses.
ROAD WHEEL STUD NUT TIGHTENING
(1) Install the wheel and tire assembly.
(2) Tighten the wheel mounting stud nuts in proper sequence (Fig. 5) until all nuts are torqued to half specification.
(3) Then repeat the tightening sequence to the full specified torque of 129 Nzm (95 ft. lbs.).
Page 98
Fig. 5 Tightening Wheel Nuts Fig. 1 Anti-Lock Equipped Vehicle Flex Hoses
BRAKE HOSE AND TUBING
INSPECTION OF BRAKE HOSE AND TUBING
Flexible rubber hose is used at both the front brakes and rear brakes. Inspection of brake hoses should be performed whenever the brake system is serviced and every 7,500 miles or 12 months, which­ever comes first (every engine oil change). Inspect hydraulic brake hoses for severe surface cracking, scuffing, or worn spots. Should the fabric casing of the rubber hose be exposed due to cracks or abrasions in the rubber hose cover, the hose should be replaced immediately. Eventual deterioration of the hose can take place with possible burst failure. Faulty installa­tion can cause twisting and wheel, tire or chassis interference.
The steel brake tubing should be inspected periodi­cally for evidence of physical damage or contact with moving or hot components.
The L.H. platform vehicles equipped with Anti-Lock brakes, uses flexible hose to connect the master cylin­der to the hydraulic control unit (HCU) (Fig. 1). These hoses have a flexible stainless steel braid over the brake hose and tube assemblies. These hoses also must be inspected as noted above for any signs of damage or deterioration.
BRAKES 5 - 7
Banjo connector to the caliper assembly. Then attach the remaining hose end bracket to the vehicle frame to minimize hose twisting. Then hand start the steel brake tube fitting into the hose end fitting. Tighten all attachment screws and tube fittings to specified torque. The frame bracket is keyed so that it will only fit one way.
On vehicles equipped with rear drum brakes, first install rear brake flex hose into wheel cylinder then attach bracket to brake support plate. Then attach brake hose end bracket to vehicle frame to minimize hose twisting. Then hand start the steel brake tube fitting into the hose end fitting. Tighten all attach­ment screws and tube fittings to their specified torque (See Specifications Section) at the end of this group for the required fitting torques.
Vehicles equipped with rear disc brakes have brake flex hoses attached to the brake caliper on each side of vehicle. The brake flex hose should be first at­tached to the Banjo bolt at the caliper and then secured the flex hose/bracket at the vehicle frame. Then attach the steel brake tubing to the hose fitting. Tighten all attachment screws and brake line tube fittings to their specified torque (See Specifications Section) at the end of this group for the required fitting torques.
INSTALLATION OF BRAKE HOSE
Always use factory recommended brake hose to en­sure quality, correct length and superior fatigue life. Care should be taken to make sure that the tube and hose mating surfaces are clean and free from nicks and burrs. Front and rear right and left side
hoses, are not interchangeable.
Connections should be correct and properly made. Use new copper seal washers on all connections using Banjo Bolts and tighten all fittings to their specified torques.
The flexible front hydraulic brake hose should al­ways be installed on the vehicle by first attaching the
REPAIR AND INSTALLATION OF BRAKE TUBING
Only double wall 4.75mm (3/16 in.) steel tubing
should be used for replacement. L.H. platform
brake tubes are coated with a zinc alloy and aluminum rich coating referred to as Prokote
2000. If brake line tubing requires replace­ment, brake line tubing with this same coating should only be used as a service replacement.
Care should be taken when replacing brake tubing, to be sure the proper bending and flaring tools and procedures are used, to avoid kinking. Do not route the tubes against sharp edges, moving components or
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5 - 8 BRAKES
into hot areas. All tubes should be properly attached with recommended retaining clips.
Care must be taken during the removal and re­placement of components on a vehicle equipped with Anti-Lock brakes. To avoid damage to the flexible stainless steel hoses between the master cylinder and Anti-Lock hydraulic control unit.
HYDRAULIC BRAKE LINE TUBING FLARES
All available brake systems used on L.H. platform vehicles use ONLY ISO STYLE TUBING FLARES (FIG. 2) at all hydraulic tubing to component loca­tions. Except the rear drum brake flex hose to
wheel cylinder connection.
CAUTION: ALWAYS USE THE PROPER TYPE OF ISO FLARING TOOL AND REQUIRED PROCEDURE, WHEN TUBE FLARING IS REQUIRED WHEN SER­VICING THE VEHICLES HYDRAULIC BRAKE SYS­TEM. THIS IS REQUIRED TO ENSURE THE INTEG­RITY OF THE VEHICLE’S HYDRAULIC BRAKING SYSTEM.
Fig. 3 Cutting and Flaring of Brake Line Tubing
Fig. 2 I.S.O. Style Tubing Flare And Fitting Connec-
tion
TO REPAIR OR FLARE TUBING (I.S.O. STYLE)
Using Tubing Cutter, Special Tool C-3478-A or equivalent, cut off damaged seat on tubing (Fig. 3). Ream out any burrs or rough edges showing on inside of tubing. This will make the ends of tubing square (Fig. 4) and ensure better seating of flared end tub­ing. PLACE TUBE NUT ON TUBING BEFORE
FLARING THE TUBING.
ISO TUBING FLARE
CAUTION: All ISO style tubing flares (Fig. 2) are of metric dimensions. When performing any service procedures on a vehicle using ISO style tubing flares, metric size tubing of 4.75 mm MUST be used with metric ISO tube flaring equipment.
Fig. 4 Brake Tube Preparation For Flaring
To create a (metric) ISO style tubing flare, Use Snap-On Flaring Tool TFM-428, (Fig. 3) or equiva­lent. See (Fig. 5) and proceed with the steps listed below. Be sure to place the tubing nut on tube
before proceeding to flare the tubing.
(1) Carefully prepare the end of the tubing to be flared. Be sure the end of the tubing to be flared is square and all burrs on the inside of the tubing are removed (Fig. 4). This preparation is essential to
obtain the correct form of a (metric) ISO tubing flare.
(2) Open the jaws of the Flaring Tool. Align the mating size jaws of the flaring tool around the size of the tubing to be flared. Close the jaws of the Flaring Tool around the tubing to keep it from sliding out of the flaring tool, but do not lock the tubing in place. See (Fig. 3 and 5)
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(3) Position tubing in jaws of the Flaring Tool so that it is flush with top surface of flaring tool bar assembly. (See Fig. 5).
(4) Install the correct size adaptor for the brake tubing being flared, on the feed screw of the yoke assembly. Center the yoke and adapter over the end of the tubing. Apply lubricant to the adapter area that contacts brake tubing. Making sure the adapter pilot is fully inserted in the end of the brake tubing. Screw in the feed screw of the yoke assembly until the adaptor has seated squarely on the surface of the bar assembly (Fig. 5). This process has created the (metric) ISO tubing flare.
STOP LAMP SWITCH ADJUSTMENT
The stop lamp switch incorporates a self adjusting feature. If adjustment or replacement is required, proceed as follows: Install the switch in the retaining bracket and push the switch forward as far as it will go. The brake pedal will move forward slightly (Fig.
6). Gently pull back on the brake pedal bringing the striker back toward the switch until the brake pedal will go back no further. This will cause the switch to ratchet backward to the correct position. Very little movement is required, and no further adjustment is necessary.
BRAKES 5 - 9
Fig. 5 ISO Tubing Flare Process
Fig. 6 Stop Lamp Switch
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